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- Mar 2023
1930s Wilson Memindex Junior Index Card Box Pre Rolodex Ad Price List Brochure
Note that the seller mistakenly lists it as a pre-rolodex!
Good photos including a list of supplies and prices:
A description of roughly how the Memindex system works:
Page archive: https://web.archive.org/web/20230310002530/https://www.ebay.com/itm/165910053313