Nope. That is the common damaged mintmark punch damage from that year. You can find it on several of the denominations that year. The RPM is on the upper part of the MM area. Not the lower corner. http://www.coppercoins.com/lincoln/...ie_state=mds SBS dollar: Nickel:
I agree that this is just a damaged mintmark punch. Most 1979-D coins have the split lower serif. What makes 1MM-003 a true RPM is the split upper serif.
Quote: the die cracks could match up because they are common areas for cracks?
Yes those are common spots. Just because there is a die crack there, doesn't mean it's a match. Match the repunching or doubling, then mintmark placement, then die markers.
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