If you are talking about the 1, it looks like it took a hit as per the little piece of metal fragment right above it. However, it looks like a notched D on the mint mark so might be an RPM.
It does not follow up the nine so I'd guess another hit there also. But I would check that possible RPM out. Looks can be deceiving, but if it is you still have a saver.
Looks like the location of the RPM is similar to 1960D-1MM-120 http://www.coppercoins.com/lincoln/diestate.php?date=1960&die_id=1960d1mm120&die_state=mds But it is a RPM. Not sure if it is from that die or not though.