Hello. I got recently this Czechoslovakia 1951 1 Koruna aluminum coin. Coin appears to be in uncirculated condition to me but the surface is damaged on one side. Is it mint error or something else? Thanks in advance. Nick
I think I see some rough parallel lines on the right side of the coin. If so, that would indicate a planchet lamination. A lamination is a flaw in the metal caused by slag impurities or improperly mixed alloy.
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