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Countertop vending machines dispensed small products that were best suited to sales of a single item. Postage and postcard machines conveniently vended items for mail correspondence outside of the post office, such as the Duplex stamp vendor, which fed one- and two-cent stamps from rolls behind glass sides. All objects are courtesy of Joe Welch American Antique Museum in San Bruno, California. "The Automatic Age: Coin-Operated Machines" is on display, pre-security, in the International Terminal. http://bit.ly/CoinOperated This image was posted on June 28, 2018.

This post mentions the following things involved with the SFO Museum collection: