This stamp vending machine, model 45-310, was manufactured in Detroit by Schermack Products Corporation and was in use around the end of World War II. The base, front and back are metal while the ...
Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. The Postage Stamp Machine Company manufactured this vending machine with U.S. patent number 2,444,747, issued on July ...
If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...
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