Precious Coin Tester on the App Store

‎When you get a silver or gold coin with correct weight and size, how can you know it is not a fake coin made of other cheap materials? Traditional ping tests can distinguish true gold or silver coins from counterfeit ones in cheap metal. But you need good ears. Precious coin tester helps you listen…

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Precious Coin Tester on the App Store

Precious Coin Tester on the App Store

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