The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented January 29, 1884

If an object in your hands says PAT. JANUARY 29, 1884, it may be one of these.

PatentTitleInventorOf
US 292,763COMBINED LETTER-SCALE AND COIN-TESTER.Edward C. PurnelleSeneca, Kansas

All dates