https://typewriterdatabase.com/typewriters.php?hunter_search=7870

GK Mandigo

also u/HumorPuzzleheaded407 <br /> with link via https://www.reddit.com/r/typewriters/comments/1m10qih/comment/n3hni2q/

https://www.reddit.com/r/typewriters/comments/1m0majf/is_it_worth_it_underwood_for_99/

u/jbird8550 is in Southern California

https://www.reddit.com/r/typewriters/comments/1lyef05/slug_work/

James Grooms use a brass wheel brush on his Dremel tool for cleaning his typeslugs.

grand opening of Indy Type Shop in Indianapolis, IN on 2025-05-14<br /> https://www.facebook.com/events/9811716722250635/

Report from (after) the IPM Typewriter Celebration by [[Brian Rytel]]

u/georgeisamonkey is in the LA area https://www.reddit.com/r/typewriters/comments/1lenfgq/why_does_every_new_typewriter_look_like_garbage/

via TypewriterJustice at https://www.reddit.com/r/typewriters/comments/1lb8brp/type_slug_question/

Tom Hanks' love of typewriters by [[CBS Sunday Morning]] by Lee Cowan

Spring 2025 ABQ Type-In by [[Joe Van Cleave]]

Public libraries are an excellent place and resource for hosting type-ins.

Joe uses slips of paper so as not to be as wasteful of paper.

Develop a mailing list to be able to contact people for future events.

Joe having his other hip replacement surgery in July 2025, so perhaps not as much activity for him just after.

https://www.printmuseum.org/typewriter

https://tomfasano.com/2025/02/21/la-county-type-in/

https://www.reddit.com/r/typewriters/comments/1kvhyol/anybody_else_used_these/

NOS Scotch Typewriter Cleaner No. 575

u/gojenjen84

https://reddit.com/r/typewriters/comments/1kt68ld/are_you_my_type_typewriter_celebration/

May 2025 Cherry Hills Library Type-In by [[Joe Van Cleave]]

https://www.instagram.com/marcivogel2/

u/tinyrooster is in the Pasadena, CA area

https://www.reddit.com/r/typewriters/comments/1kk35vo/comment/mrsd3yc/?context=3

u/antiphony has a Flying Fish 200 typewriter

u/whiteyak41 from San Diego with Olympias

LaPierre, Suzanne S. “BiblioTech: Typewriters in Libraries.” Computers in Libraries 45, no. 2 (March 2025): 24–26. https://www.infotoday.com/cilmag/mar25/index.shtml.

RSVP'd for 2025-05-10 with possibly a couple of others (via chat)

https://www.reddit.com/user/lou_spirito/

Lives in OC near Angels Stadium

https://thirty81press.com/

Two poets to open a typewriter and book shop in Garfield Park by [[Sophie Young]]

recently opened typewriter repair shops, 2025

Based on this comment and link,

u/LogInternational2253 is Jared C Riddle from Arizona.

Be sure to invite to Los Angeles type-ins.

Beyond the Type-In by [[Woz Flint]] ​

for - claim - AI for a new type of democracy? - progress trap - AI - future democracy

The Hermes 3000 repair manual has a really good section on type alignment including tools, according to Joe Van Cleave. (9:17)

Disease: Von-willebrand Disorder Type 2B, Noncanonical

Patient: 55 YO, Italian male

Note: these heterozygous variants are in cis mutations

Variant1: VWF NM_000552.5 c.2771G>A p.(R924Q), in exon 21, D'D3 domain affected

Variant2: VWF NM_000552.5 c.6532G>T p.(A2178S), in exon 37, D4 domain affected

Phenotypes: Mucosal and cutaneous bleeding, low VWF antigent and VWF activity, mild thrombocytopenia, increased ristocetin-induced platelet aggregation, deficiency in high-molecular-weight multimers. Epistaxis, repeated GI bleeding, easy bruising, ISTH BAT score of 7.

Note: Proband initially diagnosed with VWD type 1 in 2010 but later re-diagnosed as VWD-Type 2.

Family: No reported family history of bleeding, parents unable to be included in family work-up as they were deceased by time of study. Paternity test was performed for family, parental link established. Patient's daughter does not present the same mutation noted in proband but has heterozygous polymorphic variant inherited from mother which is: VWF NM_000552.5 c.3379C>T p.(P1127S), in exon 25. Daughter did not show menorrhagia or hemorrhagic disorder except for large hematoma on the thigh after trauma of moderate intensity.

Molecular workup: Paternity test, Sanger-sequencing to validate genetic variants, multimer analysis with electrophoresis, platelet aggregation analysis with Ristocetin, electron micrographs to observe conformation differences.

Prediction workup: Structural analysis with I-TASSER modeling program to identify perturbed structure. A2178S is predicted as tolerated in all in-silico systems used.

Database Information: Effect of the R924Q mutation is noted in literature database but has contradicting reports of effects altering VWF levels. Some studies do report it as a polymorphic variant

Variant is present in dbSNP database (rs33978901). MAF in European population 0.01< MAF< 0.02

Effect of A2178S variant is present in dbSNP database (rs34230288), MAF = 0.02 in European population.

Disease for patient 1: Von Willebrand Disease Type1, transmitter VWD-type 3

Disease for patient 2: Von Willebrand Disease Type 3

Patient1: 90 YO female (Afro-Caribbean)

Patient2: 40 YO female (Afro-Caribbean)

Notes multiple variants in the VWF gene but have focused on variants in the D4 domain. However cannot discount the impact of some other variants.

Variant 1: VWF NM_000552.5: c.6647del p.(Cys2216Phefs*9), results in VWF protein missing D4 domain and C-terminal end of molecule

Phenotype patient 1: Reduced VWF levels in VWF:Ag, VWF:ristocetin cofactor, FVIII:C, FVIII(VWF:FVIIIB). Bleeding score 0, required Helixate treatment before and after receiving surgery.

Variant 2: VWF NM_000552.5: c.6432dup p.(Pro2145Thrfs*5)

Three sequence variations in family study showed other variants highlighted p.(Cys1149Arg) and p.(Pro2145Thrfs*5) are not on the same allele.

Does have other variants in VWF but they are stated by authors to not be detrimental. p.(Val510=) is noted to be potentially deleterious.

Phenotype patient 2: severely reduced VWF levels, absence of multimers, bleeding score 32, epistaxis, bruising, oral cavity bleeding, prolonged bleeding from minor wounds, menorrhagia, hemarthrosis, ankle arthropathy.

Suggests premature termination codons in these variants may lead to NMD but that this mechanism was found to be PTC position-dependent. Degradation was not 100% and need to perform cellular experiments.

https://old.reddit.com/user/inode71

Disease: Von-willebrand Disorder Type 3

Patient: 26 yo, female

Variant: VWF NM_000552.5 c:997+118 T>G g.(6073501 A>C), homozygous, intronic

Phenotypes: No detectable VWF in plasma, early onset bleeding complications, epistaxis, easy bruising, bleeding following injury, menorrhagia, iron-deficient anemia

Note: underwent prophylaxis replacement therapy, on-demand antihemorrhagic treatments, oral contraceptives, and replacement therapy.

Family: not mentioned

Predictions:

VEP SpliceAI tool predicted variant likely deleterious (delta score 0.95)

Used Polyphen-2 and SIFT which determined pathogenic likelihood.

Neural Network Splicing, Alternative Splice Site Predictor, plug-in MaxEnt(For 5' donor site) of Human Splicing Finder all concur this variant can create a new donor splice site in intron 8. Contains premature stop codon and susceptible to NMD.

Functional work:

qRT-PCR performed to identify levels of VWF in IP-derived endothelial cells.

histochemical immunostaining for IP-derived endothelial cells confirm no VWF production, only a residual amount present. Suggests leaky mutation.

performed RNA sequencing to assess co-regulated gene networks

Disease: Von-willebrand Disorder Type 2M

Patient1: 13 YO male

Patient2: 16 YO female

Note they are siblings

Variant: VWF NM_000552.5: c.5192C>T p.(Ser1731Leu), heterozygous variant, in A3 domain in exon 30

Phenotype patient 1: several bleedings after tosillectomy, recurrent epistaxis, decreased VWF:CB ratio, decreased VWF:CB/VWF:Ag ratio

Phenotype patient 2: menorrhagia, intermittent gum bleeding, easy bruising, decreased VWF:CB ratio, decreased VWF:CB/VWF:Ag ratio

For both patients: VWF:CB ratio corresponds to collagen type 1, multimer analysis was normal, VWF:Ag, VWF:Ac, and factor VIII activity was normal.

Family: Not listed

Present in dbSNP (rs764077750)

Present in gnomAD, rare MAF (ALL: 0.0012%)

Predictions:

SIFT- predicted deleterious (Score 0.01, median 3.34)

MutationTaster- Predicted disease causing (probability score 1)

PolyPhen2- Predicted probably damaging (Score 0.983)

CADD score- 26.5

Authors mention similar AA substitutions at the p.1731 position which leads to reduced binding of VWF to collagen in other patients.

Authors also cite a functional human cell experiment in COS7 cell line which resulted in functional VWF defect.

Authors conclude this novel variant as likely pathogenic.

endomorph body type = good weight gainers = bad weight losers.<br /> thats the whole secret of the "fat acceptance" tragedy / comedy.

Disorder studied: Type 1 von Willebrand disease (T1-VWD).

Type of study: Translational

Model organism: Mouse (inbred strains) Obtained from Jackson Laboratory

Analyses:

VWF plasma protein quantitation (ELISA)

Hertiability calculations

PCR genotyping

QTL analysis

Allele-specific primer extension analysis

Results:

Identified new modifier of VWF known as (Mvwf5). Also found two loci unliked to Vwf known as (Mvwf6-7)

Mice with this variant displayed statistically significant decrease in VWF levels, recapitulating the decreasing patterns displayed in humans.

However, another strain of inbred mice with a different mutation did not show an age-dependent decrease in VWF. Suggests strain-specific differences in regulation of VWF levels over time.

Mvwf5 is a cis-regulatory variant altering Vwf mRNA expression.

This is a natural variant of the Vwf allele among inbred strains of mice. Found this variant causes elevation in steady-state levels of Vwf mRNA.

Authors state findings show equivalent of of type 1 VWD is remarkably common in mice and humans. ALso state the Mvwf1 analysis in wild mouse populations suggest this locus is under selective pressure.

Of the 5 potential modifier loci identified, 3 display conservation of synteny with potential human modifier loci.

speed of development vs. safety

Hulse Manufacturing Co.<br /> 15 Lewis Street<br /> Geneva, NY

manufactured steel type for typewriters, adding machines, check protectors, etc.

https://discord.com/channels/639936208734126107/639939010541649951/1288998274916683886

Typewriter Basics: Carriage Locks by [[Sarah Everett]] of [[Just My Typewriter]]

Sarah describes having a common spacebar issue when repairing a typewriter, bending the spacebar down which causes the machine not to work/advance as a result when it's put back into the typewriter shell.

Sarah also shows some type bar benders, but doesn't demonstrate how she (or her father) used them to do the repair.

ROYAL KMM Replacing Type Bar Link Remove Arm Repaired Typewriter by [[Phoenix Typewriter]]

This is roughly what I expected to be the case. I've got to shift the fulcrum pivot wire so I can reattach my Q and @ on a Royal KMG.

Roughly similar to Gerren's video on swapping out typefaces, but with a slightly different technique for speed of doing that. See: https://hypothes.is/a/I_-9rBV2Ee-eMotzy9_Z-Q

How To Guide- Swapping Type Bars on a Manual Typewriter -Full tips and tricks by [[The HotRod Typewriter Co.]]

Usually the keys on most typewriters are friction fit on and come off pretty easily. The tougher part is that the slugs are soldered onto the typebars, so you'll need to remove them and swap them with a soldering arm. Even if you have the soldering tools, the more trying part is aligning them properly when putting them back on. Many old school shops have/had custom jigs made for properly aligning slugs when soldering them on.

If you don't have the tools, patience or facility, this is usually something best left to your favorite shop: https://site.xavier.edu/polt/typewriters/tw-repair.html

reply to u/fontinalispluma at https://old.reddit.com/r/typewriters/comments/1gb3dwc/change_the_keys_and_type_slugs/

Smith Corona Typewriters 1935 - 1980 Type Alignment / Shift Motion Upper Lower Case Adjustment by [[Phoenix Typewriter]]

Duane starts out by showing the two adjustment screws for the upper and lower case motion adjustment on a 5 Series Smith-Corona portable. (This should be the same across several decades of machines and include the 4 and 6 series as well.)

Type bar plier adjustments up and down demonstrated at about 7:00

dry cleaning solvents in 1941 were likely Varsol or Stoddard's Formula.

compare to trichloroethane<br /> https://hypothes.is/a/EyBIAFXAEe-AcP-Atlj_aQ

Note discontinuation of carbon tetrachloride<br /> https://hypothes.is/a/bfdi_I90Ee-OQLN0HpsE7Q

https://en.wikipedia.org/wiki/Carbon_tetrachloride

Carbon tetrachloride or carbon tet is a non-flammable, dense, colorless liquid which was often used as a cleaning agent in the mid 1900s, but was phased out due to safety and environmental concerns. High exposure can affect the central nervous system and cause damage to the liver and kidneys. Prolonged exposure can be fatal.

Hints for a Happy Typewriter<br /> Bryan Kravitz, Nancy Gorrell, 1983<br /> https://typewriterdatabase.com/1983-Hints4HappyTypewriter.index.manual

Some good, basic home care and use from 1983. Home mechanics in 2024 are probably capable of a bit more without the backstop of a typewriter mechanic.

This guide suggest the use of solvents like alcohol or trichloroethane for cleaning type slugs and internals. Note that trichloroethane manufacture and use has diminished significantly since 1996 when it was identified by the Montreal Protocol as a contributor to ozone depletion.

When doing type alignment, Duane Jensen was taught to use an old/used ribbon instead of a new, wet/dark ribbon for better performance in testing. New ribbons don't show the differences as well.

He's noticed that ribbon from Around the Office are dreadful.

New 3D-printed elements for the IBM Selectric by [[Richard Polt]]

New Selectric Type Elements by [[Joe Van Cleave]]

JVC tries out a new 3D printed type element in an IBM Selectric he got from David Hayden

David Hayden <br /> Austin Selectric Rescue<br /> https://selectricrescue.org/

Custom type elements for the IBM Selectric

ᔥ[[Joe Van Cleave]] in New Selectric Type Elements<br /> (accessed:: 2024-10-19 11:42:15)

Custom 3D Printed Selectric Elements are HERE! (Vogue! Papyrus!) by [[Theodore Munk]]

Advanced Typing: Duplicating and Manuscript. Vol. MN-1512d, 1943. https://www.youtube.com/watch?v=7ve5JnTUzvo.

Stencils

Before writing stencils, be sure to clean your type. (Don't use liquid solvent.)

Be sure to place the cushion sheet properly behind the stencil.

Place the paper bail rollers at the extreme left and right of the stencil to prevent them from marking the master.

For errors, rub individual characters separately with a burnisher using a circular motion.

Hectograph masters, Hectograph ribbon (ditto ribbon)

Wax pencils

Typefaces

20% more type on a page with elite than 10 inch pica.

Pica allows approximately 26-40 lines on standard letterhead giving 300-450 words to a page.

Special characters: - o for degrees ' and " for feet and inches or minutes and seconds along with superscript - division: - backspace colon - pound sterling: L backspace f - exclamation point: period backspace ' - equal sign: hyphen backspace variable hyphen - paragraph mark: P backspace I

proofreaders' marks<br /> # followed by a number is used to mean insert that number of spaces

Centering timestamp 19:37

Basic Typing: Machine Operation. 16 mm. Vol. MN-1512b, 1943. https://www.youtube.com/watch?v=b-REJEArnjE.

Type pacer timestamp 4:12

"Your head is the most important part of your typing." - Lenore Fenton

"Your typewriter does exactly what you make it do, but it does no more" - Lenore Fenton <br /> This is very similar to quotes about computer programs at the end of the 20th century too.

The touch characteristics for the manual, the noiseless, and the electric are all slightly different.

1962 Vintage IBM Typewriter Training Film IBM Selectric Proper Typing Procedures, w/ Bud McDole by [[Computer History Archives Project]]

Right at the Typewriter. 16 mm. San Francisco, CA: KQED, 1962. https://www.youtube.com/watch?v=sPfHAW_OfGo.

On manual typewriters one "snaps" the keys while on an electric keyboard one "taps" the keys for maximum speed and accuracy.

Overview of functionality of an IBM typewriter.

To add longevity to one's carbon papers they should be rotated both top to bottom and front to back within one's packs.

Use plastic type cleaner, meant for cleaning type slugs, to clean the excess ink from a typewriter. Form it into a point and press it to the letter to erase several times. Then erase with eraser shield and eraser.

To type to the very bottom of the page, particularly with a carbon pack, to prevent slippage at the bottom, insert a "trailer sheet" about halfway down the first page. Insert it at the back of the pack just behind the original and between the first carbon sheet.

For typing small sheets of paper (index cards) fold a pleat into a regular sheet of paper and use the lip to hold the smaller sheet you're typing on.

To more quickly type envelopes, do the first then reverse the platen so that only about an inch of the top of the envelope is visible. Then insert the next envelope behind the first and continue reversing the platen. This will allow the finished envelopes to stack at the paper table and speed the threading and typing of envelopes in rapid succession.

Use of the divots on the typing guide for making horizontal or vertical lines while moving the carriage or rotating the platen respectively.

How to change the typeball and the ribbon cartridge on the IBM selectric.

Disease: Von Willebrand Disease (VWD) type 1

Patient(s): 13 yo, female and 14 yo, female, both Italian

Variant: VWF NM_000552.5: c.820A>C p. (Thr274Pro)

Dominant negative effect

Heterozygous carrier

Variant located in the D1 domain on VWF

Phenotypes:

heterozygous carriers have no bleeding history

reduced VWF levels compatible with diagnosis of VWD type 1

increased FVIII:C/VWF:Ag ratio, suggests reduced VWF synthesis/secretion as possible phathophysiological mechanism

Normal VWFpp/VWF:Ag ratio

Modest alteration of multimeric pattern in plasma and platelet multimers

plasma VWF showed slight increase of LMWM and decrease of IMWM and HMWM

Platelet VWF showed quantitative decrease of IMWM, HMWM, and UL multimers

In silico analysis:

SIFT, ALIGN, GVD Polyphen 2.0, SNP&GO, Mutation Taster, Pmut all suggest damaging consequences.

PROVEAN and Effect suggest neutral effect

according to ACMG guidelines this variant was classified as pathogenic

The 2024 Phoenix Type-In by [[Joe Van Cleave]]

Platen shrinkage

• most typewriters are 6 lines per inch
• 6.5 lines per inch based on actual measurement per JVC on one of his machines
• 2mm shrinkage??
• Per Bob/Typewriter Muse 1.1

Bob had a machine that was supposed to be 1.27 but was measured at 1.259 when pulled off. So shrinkage of platens can be roughly fifteen hundredths of an inch (0.015" or about 0.4mm)

Bob at Typewriter Muse custom tunes platens to the typewriter. Only place doing platens outside of JJ Short.

JVC's partner took him to the Phoenix Type-in for her birthday.

Bill Wahl of Mesa Typewriter Exchange

grandfather started in the 40s<br /> bill started in 73<br /> part time help to 92 and now by himself<br /> does his benchwork after hours and chats during the day

Ted Munk

adding machine database consideration

looking for service manuals for: - royal portables 50-59<br /> - skyriter 40s / 50s<br /> - sm9 service manual

Royal Mercury manual is a clear, well-written manual. The Smith-Corona series 5 typewriter manuals are great too, though a bit more dense.

Brian Goode and Christy organized this year's Phoenix Type-In.

This section of the abstract highlights that the article is a literature review that will be looking at other published articles on Maker education

Disease: Von-willebrand Disorder, type 1

Patient 1 Variant: VWF NM_000552.5: c.4135C>T p.(Arg1379Cys) Exon 28

Family: History not mentioned

Patient 1 phenotype: near normal VWF:Ag and WVF:RCo levels RIPA within normal range Platelet VWF levels were normal normal pattern for multimeric analysis of plasma Slightly reduced VWF levels

In silico predictions available:

I-Mutant 3.0 value = -1.36 PYMOL prediction = substitution of ARG 1379 with a cysteine results in the loss of hydrogen bonds with Lys1407 and Lys1408, predicted change in secondary structure of A1 domain

Disease: platelet-type von Willebrand disease (PT-VWD)

Patient: 14 yo, Male

Variant: GP1BA NM_000173.7:c.389G>A p.(Arg127Gln), Heterozygous, Gain-of-Function (GOF)

Located in LRR5 domain of GP1BA

Family: Mother did not refer any bleeding symptoms (variant absent in mother) Father not available for collection of clinical history or platelet function testing

Smith Corona Typewriter Changeable Type Slugs Faces Styles Demo by [[Phoenix Typewriter]]

Short demo of changing the typeface on the Smith-Corona 6 series+ using the Smith-Corona Changeable Type functionality.

Type-in activities:<br /> - learning about typewriters, both using and how they work;<br /> - demonstrations of typewriter maintenance, cleaning, how to change a ribbon, and small repairs for common problems - typewriter tool showcases - what tools might you need to maintain, clean, and repair your typewriter? - lots of machines to try out, which might best suit your writing style, and typing touch? If you don't have a typewriter, this is a great way to try some out before buying your first one - typewriter purchasing and collecting advice - encouraging typing as a distraction and screen-free writing tool - writing (fiction, non-fiction, poetry) along with potential writing prompts (this could dovetail in with other library-related writing endeavors); - A group story: A single typewriter is reserved to one side upon which each participant can contribute by typing a single sentence to create a collaborative/group story "exquisite corpse"-style; - typewriter art and arttyping - Speed typing contest (with small prizes) - We'll bring stationery (paper, envelopes, stamps) to encourage participants to type letters to friends or family (bring an address for someone you'd like to write to); - typewriter swap and sale (optional depending on the venue's perspective; sales are not the primary purpose here) - typewriter repairs using 3D printing or designing replacement parts (if the venue can support this) - typewriter handicrafts (typewriter covers and sewing/repairing cases) - typewriter resources (repair shops, where to find ribbon, how old is my machine?, et al.) - a possible typewriter mystery game? - share stories - encourage community

For a local library-specific type in:<br /> - library card applications which can be typewritten for potential patrons who don't have a library card - typewriter books (particularly if hosted at a library; place a hold on several typewriter-related books which attendees can browse through at the event and check out afterward) - 3D printing typewriter keys, spare parts; design of replacement parts for 3D printing

Attendees are encouraged to bring one (or many more of their own favorite manual typewriters) to use, showcase, or demonstrate to others, but having your own typewriter is NOT a requirement for attendance.

Joe Van Cleave hypothesizes that the slightly blurry and/or ghosting letters on typewriters may be the result of the typebar just hitting the typing guide and moving slightly as they do thereby creating issues with the type clarity.

https://youtu.be/GpLpTkhSGWc?si=MFmshF-LPPa1CyUP&t=1190

in the LA area for potential type-ins

u/pbasch is in the LA area

Cleaning Type Slugs Fast ! Removing Clogged Dirty Ink Typewriter Service How to Shine Those Faces by [[Phoenix Typewriter]]

Duane cleans type slugs by draping the typewriter with cloths and then using a metal bristle brush and lacquer thinner. Small picks or an X-Acto knife can help to remove gunk from the interiors of the closed letters.

https://www.typepals.com/<br /> Pen pals with typewriters

QWERTYFEST MKE 2024 by [[Richard Polt]]

Type bar bender<br /> https://www.rrtypewritermart.co.in/product/29583290/Type-Bar-Bender

A tool with degree measurements for bending typebars for placement into a basket. Could be used for bending bars for swapping QWERTY to QWERTZ.

https://groups.io/g/TYPEWRITERS/topic/soldering_type_slugs/82277130?p=

https://www.reddit.com/r/typewriters/comments/14szjp/decided_to_share_one_of_mine/

Description and tools for swapping out typewriter slugs by soldering.

https://imgur.com/a/typewriter-tools-sSBsL

Typewriter / Typeface: The Legacy of the Writing Machine in Type Design by [[María Ramos]] on July 12, 2016

I love that Joe is helping out with a local school's analog typewriter club.

https://new.reddit.com/r/typewriters/comments/8t6ym5/dvorak_typewriters/

Joe Van Cleave shows how to raise/lower individual type slugs by bending the typebars, particularly the ones out toward the end, without using custom typewriter repair tools.

time stamp 19:25

reply to u/Deep-Seaworthiness48 at https://www.reddit.com/r/typewriters/comments/1e5gh4p/two_5_keys_sc_poweriter/

Things like that happened on alternate language/region typewriters. I've got a Dutch keyboard layout that repeats a % symbol twice.

It's likely that the pound symbol was needed/required so they pulled one from a pre-existing typeslug and key cap on a keyboard where the £/5 key was common and replaced the 1/! which in the era was widely known could be done by alternate means (aka lower case 'l' and '.' backspace '''.

The value of the £ was more important to the typist and because of typeface manufacture was probably easier to do in the £/5 existing combination from something like the English No. 1028, International No. 1060 keyboard, the Brazilian No. 1065, or the Danish No. 1047 all of which paired the £/5. See also: https://munk.org/typecast/2023/02/03/1954-smith-corona-scm-typewriter-type-styles-and-keyboards-catalog/

Off hand, I don't see another S-C keyboard combination from that time period that had a £ paired with any other glyph/character. In the "change-a-type" time period they likely wouldn't have done a custom black key for the £/5 when they were already manufacturing one in a matching white. If they didn't also swap out the key at the far right end of that bank, I would expect it to be a standard black '+/=' key cap and slug.

reply to u/67comet at https://www.reddit.com/r/typewriters/comments/1e4hu0s/smith_corona_electra_120_ribbon_carrier_not_moving/

That piece is called a ribbon vibrator which moves the ribbon up and down. They generally operate on gravity and as a result they need to be clean and free from oil, gunk, hair, dust, etc. Usually they slide up and down freely. There's a colloquial saying in the typewriter space that "A typewriter isn't really broken unless it's clean and broken."

Occasionally ribbon vibrators can become bent which makes them inoperable and this can be remedied with some light forming (bending) with an appropriate screwdriver or needle nosed plier. You can search YouTube and you'll find a variety of videos for cleaning and forming these back into shape so that they slide cleanly.

As for your missing 1/! slug, it's unlikely that you'll find someone selling just the slug itself and then you'll need to solder it on perfectly and/or adjust it slightly with appropriate tools to get the right alignment. Far better is to check around with repair shops that might have the same or similar machines which they're parting out and then you could request one. Your best bet is to purchase the entire typebar and slug assembly from a donor machine which you can then swap out into your machine and skip the soldering. For this https://www.youtube.com/watch?v=pFMu6dUROGA can give you tips.

To find donor machines, try repair shops on this list: https://site.xavier.edu/polt/typewriters/tw-repair.html

1960 Union Foundry Typewriter Type Slug Specifications – To Type, Shoot Straight, and Speak the Truth… by [[Theodore Munk]]

Royal Model "O" Typewriter Adjust Ribbon Lift for each Type Bar Lever, Works on Quite Deluxe too. by [[Phoenix Typewriter]]

Forming individual type bars, particularly for capital letters to get the tops to print evenly when they're more faint than other similar typefaces.

Watch Phoenix Typewriter in Remington Quiet-Riter Typewriter, Skipping Letters, Adjust Escapement, Type Bar Trip

Bruder, Jessica. “Click, Clack, Ding! Sigh ...” The New York Times, March 30, 2011, sec. Fashion. https://www.nytimes.com/2011/03/31/fashion/31Typewriter.html.

What the @#$% is a Type-IN ?

Polt, Richard. The Typewriter Revolution: A Typist’s Companion for the 21st Century. 1st ed. Woodstock, VT: Countryman Press, 2015.

annotation URL: urn:x-pdf:65fe580cf845ed035c4e57ad02a987cf

alternate annotation URL

https://type-in.org/

TWVS Episode 20 - Adjusting Upper and Lower Case Positions by [[Joe Van Cleave]]