I'm considering giving this the usual soak overnight in washing up liquid/water 1:1 .
Given what it is, is this a wise decision or not?
Once soaked I just rub the coin between two fingers under a warm tap.
Gets the grease etc off nicely, with no abrasive action other than my fingerprint.
I heard that some coins are worth more if you don't clean them though , so should I or shouldn't I?
Opinions greatly appreciated.
Don't want to ruin such a special coin.
Grade / values anyone?
Cheers
S.