Acetone will only work on organic deposits. I don't believe that an ultrasonic cleaner has been accepted as not being harshly cleaned or not...
On the photo I showed, if the clad had been removed post strike, the details on the copper side would be mushy. But, if the coin was struck with...
It appears the coin was completely the dark color at one point. (Environmental damage as already pointed out.) And I think someone intentionally...
Not a small date. In the small date the curl of the 9 comes around more, the 7 is high, and LIBERTY is weakly struck. Also the point of the 9...
A wrong planchet error is going to be on a smaller coin. If the rims are complete and fully formed, it can't be a wrong planchet error. The...
Separate names with a comma.
