Pobjoy issues colored titanium coins - Numismatic News

Pobjoy issues colored titanium coins - Numismatic News

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Numismatic News

Pobjoy issues colored titanium coins
Numismatic News
For a couple of years, Britain's Pobjoy Mint has been issuing numerous colored coins struck in titanium. The blanks used for the coins have anodized. This is an electrochemical process that produces an oxide layer on the surface of the titanium. When ...


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