Maranville Patent Coin Detector, by C. E. Staples, Worcester, Massachusetts, the brass rocker with semi-circular pan marked for various U.S. and foreign (British and French) gold and silver coins and sliding beam with corresponding markings, wd. closed 3 in.
Auctioneer:
Skinner
Date:
2003-05-03
Maranville Dial Coin Tester, Akron, Ohio, with 1878 patent, the nickeled brass rocker with twin depth gauges and markings for U.S. gold and silver coins, Read more…
Auctioneer:
Skinner
Date:
2003-05-03
Gold and Silver Counterfeit Coin Detector, by Berrian Mfg. Co., New York, with 1877 patent, bent nickeled plate, coin slots, but without provision for letters, Read more…
Auctioneer:
Skinner
Date:
2003-05-03
Realm Counterfeit Coin Detector, by the Specialty Mfg. Co., Manchester, England, with nickeled bar, slotted for four silver coins, on oak base, wd. 3 3/4 Read more…
Auctioneer:
Skinner
Date:
2003-05-03
