Hello all, I'm new here, and this is my first post, so I hope it works OK. I found this while going through some dimes, and wanted opinions on if it is a strike error. It looks like there was an extra chip of metal on the planchet, which was then stamped into the coin. The other possibility is that there was something soldered to it at some point, but the defect shows the same tone as the rest of the coin, and there is no evidence of heat being applied. I would think if it was solder, the metal would be a slightly different shade, since lead and silver age differently. Thanks for the opinions.
This is most likely post mint damage. I have seen this on some silver roosevelt dimes as well. This is caused by a torch most likely, which caused the metal to shape like this. Refer to this thread for additional info, http://www.cointalk.com/t84826/
Thanks for the quick replies, and I was hoping it would have been an error, but wasn't overly optomistic about it. Here is the obverse.
Agreed. The coin was probably used as a pin or cuff link at one time and the solder spot is still present. Could even be silver solder.