https://typecast.munk.org/2011/04/23/1964-nomda-blue-book-olympia-font-styles/
The following were the available Olympia type sizes as listed in the 1964 NOMDA Blue Book:
Not in the NOMDA Blue Book, but found in the wild on a 1971 Olympia SG-3: - 6 pitch (4.2 m/m) with typeface: Basic Writing No. 67
6 pitch would be 4.2 m/m
Not unusual to see regular pica spaced rulers on very small (18-21 cpi). They weren't common enough to warrant making new rulers.
via u/Koponewt (Otto)
https://www.reddit.com/r/typewriters/comments/1l2ayq1/any_font_smaller_than_elite/
Diamant-Blockschrift Ro 209' micro typeface
I've heard of Olympia SG1s with 17 CPI typefaces and some seem to think that 20 CPI machines may exist.
Any fi nancial progress that black people made was regarded as an aff ront to white supremacy. After a decade of black gains under Reconstruction, a much longer period of racial violence would wipe nearly all of it away.
CPI- I was not fully aware of the fact that Black people were able to make as much financial progress as they did, which only speaks to the fact that white people refused to accept that Black people could be successful and that they tried as hard as they could to stifle that success.
Diewert, W. Erwin, and Kevin J Fox. ‘Measuring Real Consumption and CPI Bias under Lockdown Conditions’. Working Paper. Working Paper Series. National Bureau of Economic Research, May 2020. https://doi.org/10.3386/w27144.
"On Some Ideological Questions under Debate in World Communist Movement." introduces the reader to the inner-party differences in undivided communist party of India.