Sigma precious Metal Verifier - General Precious Metals - The Silver Forum

What do people think of the Sigma precious metals verifiers? Worth buying and how accurate? Any surprises with tungsten filled gold bars? there appear to be many fake pamp and perth mint gold bars when you scan facebook and see them being sold way below spot.

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What machine do you use to test gold and silver items

I work at a precious metals dealer. AMA : r/Silverbugs

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Counterfeit (Fake) Pamp? Assay 5 Gram - Coin Community Forum

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