That image is a lot better, but I don't feel it is a RPM. There should be a spread to show the multiple punchings in order to be a RPM. When the punch get set deeper into the die, the mint mark can look full and is actually taller than the other devices. But I don't see this as a RPM.
This one you can actually see the separate punching.

This one is actually listed on coppercoins.
http://www.coppercoins.com/lincoln/...ie_state=mdsNote the spread between the punchings?