Respuestas al mensaje #351

Unless your coin is super dirty or corroded, it just devalues it. However, cleaning is often a necessity with ancient coins,

I'd never be so lucky. Four stamped with "o" and one stamped with "s". Rest have no marks. None of them seem to line up with the "valuable" dates...

The way the metal's crystal structure deformed during minting generates microscopic flow marks, which in turn gives rise to interesting visual...