To Clean or Not to Clean?
For context, these coins were taped to a piece of cardboard pretty much since 1967 or shortly after by my grandparents, but this has caused them to tarnish in a very "unique" way. I heard that cleaning them somehow decreases their value, but I'm not sure they'd be worth much more than their silver content in this condition anyway. My only concern is if cleaning them would somehow damage them.
u/Epping125 — 8 days ago