Soviet Calculator History (1998)(xnumber.com)
118 points by Tomte | 48 comments
118 points by Tomte | 48 comments
67 points by nanna | 21 comments
15 points by goshtasb | 0 comments
Step-by-step guide from John Wolff's Web Museum to disassembling, cleaning, and reassembling an Original-Odhner Model 127 pinwheel mechanical calculator.
60 points by austinallegro | 9 comments
Vintage Cassettes is a collector site cataloging photos of 2,669 sealed compact cassettes from 1963-2010, organized by brand and year, with tape history resources.