This RPM is from a 64D Kennedy Half Dollar. It is listed in the Wexler Files as WRPM-007, D/D/D horizontal and north, but not listed by CONECA. I and a couple of friends are trying to figure out what happened to create this RPM. Can anyone come up with an explanation of what happened to create this? One explanation I thought of could be that a person at the mint who was punching the mint mark into the die first punched an horizontal D, and after realizing it was horizontal, turned the punch CW to the north-south position, but had the punch resting on the die causing a scratch as they turned it. Then punched in a north-south D. After this they didn't like what they saw and then they sanded away the two punched D's and scratch, leaving remnants left, north, and a scratch in the middle. Then they punch in the primary D over their mess leaving a 64 D/horizontal D/D north, with a scratch in the center…any other ideas? Thank You, Larry Nienaber
Personally, I don't see any convincing evidence that this is an RPM. The thin, faint lines could be die damage.
Doesn’t anyone have an opinion, besides Mike Diamond, regarding this 64D? I think the thin faint lines he said could be die damage, could be the remnants of punched D’s after the die was sanded. Attached is an overlay that I believe could explain what happened. Larry Nienaber
Why don't you post your photos on the CONECA message board. James Wiles would be around eventually to look at them. http://board.conecaonline.org/
Larry, I am assuming that the Half Dollar has the MM punched into the die as all other coinage. It could be a dropped letter at the most, meaning that the die wasn't punched. Had it been punched and then sanded, the MM on the coin would look like a mound instead of the D you have. That is my opinion. For futher evaluation as Mike said, I would have James Wiles look at it. I think it is a interesting coin. Rhubarb
Interestingly, there is one coin that has an incuse mintmark - the 2001 American Buffalo commemorative silver dollar.
I don't know. Not sure if it was accidental or by design. I guess the mintmark was punched into the hub instead of the die. That's the only way I can see the MM being incuse.