50 years ago, an automat began taking paper money
Excerpt from the September 4, 1965, issue of Science News Letter
PAPER TRAIL Modern vending machines use a combination of technologies, including magnets and special scanners, to tell real bills from fake ones. An early automat that accepted paper money made its debut 50 years ago at Swedish gas stations.
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Swedes feed paper bills to pump to receive gas — A master automat for controlling several different gasoline pumps at once allows a driver to fill his own tank after hours by putting paper money in the slot….