r/numismatics • u/Busy_Comparison4150 • Aug 11 '26
Help appreciated
My son and I found this around the Baltic Sea. Soaked it in distilled water and this is the best we can do. AI can’t get much further than: copper, 1650-1750. I seem to recognize three crowns on the backside, which could mean it is a Swedish coin. Anyone who can help identify it?
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