Ancient coins with a sand patina should be evaluated to see 1) is there enough left of the design and legends to identify it and 2) would it...
Ancient coins with a sand Honest answer (quoting Doug @GDJMSP ) there is nothing wrong with "cleaning" but not "Harsh cleaning". In general any...
Did you notice what kind of coin this is? It definitely ain't either bullion or constitutional silver.
Separate names with a comma.