I found an old coin metal detecting near Bitburg, Germany. This area is on the southwest side of Germany. The coin is rough as you can see and I can only make out one side which is not very clear either. The diameter is 2.5cm (15/16") and thickness is 1mm. It seems to have a shield and possibly a crown on top. Any ideas? I know cleaning coins is a big no-no but in this case I do not think some cleaning would hurt. But if the consensus is to leave the coin as is, then that is what I'll do. Thanks!
