I bought a 1 troy oz 9999 silver Canadian, Maple leaf coin
to use as an anode . These run about half the price of
silver wire of the same purity, and with a lot more
confident provenance.
But it does not act like it is bare silver. It is extremely
clean and shiny for a bare silver surface, with no sign of
tarnish. It discolors and frosts along fine lines, not all
over the surface, when used as an anode.
Does anyone here know if these coins are coated, and if so,
what with?
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Regards,
John Popelish
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