Bessie R. Callow, US1259209A
Coin-Envelop.
Image credit: Callow, B.R. (1917)
On March 12, 1918, Bessie Roberta Callow of Salt Lake City, Utah, patented a coin envelope featuring a row of pockets, each designed to hold a token securely in place. Her invention improved the stability and organization of coins during mailing or other forms of transport.
Date of Application: 15 March 1917
Date of Issuance: 12 March 1918
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Francesca Chiaradia
PhD Student in Economics
My research interests include law and economics, economics of innovation, and information economics.