Found a few days ago cant really find this on on copper coins maybe its a flying D the last pic is the best one
Do you have a photo that shows the date and mint mark together? It's a split-serif RPM, but I can't identify which one by just those photos.
Thanks. Hard to tell without markers, but it looks a lot like 042 on Coppercoins. See if you can match up any of the heavy die gouges. http://www.coppercoins.com/lincoln/diestate.php?date=1951&die_id=1951d1mm042&die_state=mds I'll have to check my Coneca files when I get home and see if they list it.
Coneca shows a few that are similar. Oftentimes on circulated examples such as this, it can be almost impossible to match them up, especially without doing overlay comparisons. Also keep in mind that just because your coin does not have matching markers to a variety on coppercoins doesn't mean that it is not that variety. It could simply be that you have an example from a different die stage.