Shelby Davidson (1868 – 1930) – Paper rewinding device
Just because someone works in a post office doesn’t mean the person has to deliver mail. Shelby Davidson worked for the United States Postal Service, specifically in the auditing department, where he kept track of schedules and numbers. Perhaps necessity is, after all, the mother of all inventions. Davidson invented a paper rewinding device for adding-machine in 1908 and an automatic fee device in 1911. Both inventions made his job much easier and more efficient.
FBA INVENTORS: Shelby Davidson (1868 – 1930) – Paper rewinding device
$5.00Price
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