Hello, i've been an amateur coin admirer for a long time, and i've found my first 'curious' coin. If I didnt at least ask if it was a keeper I would probablly regret it! The coin in question is a 1999 P Dime - it has a very sharp rim edge on the face side of the coin. I havent broken out the calipers but it appears to be as thick as a normal dime and only slightly larger in diameter than others. The field is crisp and clear, but could this be a double-punched coin? If I run my finger over the side in question, the rim edge is very sharp. Attached is a photo, but quality wise, it is hard to see very clearly. Is what I have a keeper? Is it possible that this is a double-punched coin? Thank you all for your help!
Howdy mjohn1999 - Welcome to the Forum !! Based on the picture it's hard to say, but based on your description it sounds like you may have a coin with what is known as finning. It happens sometimes when a coin struck with slightly higher pressure or a slightly thicker planchet is struck. With either there is some excess metal and sometimes the metal will be forced up inside the collar when the coin is struck. This creates a fin - or the sharp edge you describe. These coins are kinda cool and fun to collect - but they're not really worth much.
GDJ, thank you for the warm welcome.. I've been a lurker for awhile and posted because I saw how friendly everyone was. Thank you for the information, it is a neat coin so I think I will hold on to it worth something or not. Your explanation makes perfect sense, half of the coin seems to have more of this 'fin' than the other half. Thanks! -John
