Jim figured out a method of measuring the percentage of off-centerness of the mint error coins by using a dial caliper. Numismatists the world over who collect mint error coins and the entire circle of coin collectors around the globe now use Jim's method for measuring these off-center coins. It is known as the Saldutti Method of Measurement for Off-center Strike Coins and Planchet Clip Coinage.
To read more about this get a back issue of Error Coin News, write to the publisher, Marty Argolioui,
and ask for a copy, please tell him Jim sent you!
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