Curious About Notched MD On WDDR-033 (2015-P Homestead)

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Author	Replies: 10 / Views: 1,265
profiler Valued Member United States 144 Posts	Posted 08/12/2015 4:38 pm I'm curious about the notched shaped of what looks like MD on the pump of these two 2014-P Homestead quarters. One is on a coin with a DDR, the other is without DDR. This is the WDDR-033: I've marked two areas on the pump: The red arrow points to very flat, shelf-like notch in the pump's flange. The green arrows point to the same amount of notching -- but they're pointed at the tips. It's the "pointiness" that makes me curious how this could happen: I've found two more instances of the same on 2014-Ps that don't have the DDR: Your thoughts, please? Thanks in advance. :) Edited by profiler 08/13/2015 4:27 pm Report this Post to the Staff

coop Bedrock of the Community United States 62064 Posts	Posted 08/13/2015 6:03 pm Great images. Looks correct to me. Report this Post to the Staff
profiler Valued Member United States 144 Posts	Posted 08/13/2015 6:19 pm Thanks, Coop. I didn't word my question properly. Sorry. Yes, it is the WDDR-033. My question was about the notching in the lower part of the pump that's confusing me. I've seen this on coins with the DDR and without the DDR. Is that notching there MD? If so, how did the notch where the green arrows are get those points? If it were MD, I would expect it to be totally flat like the area above it with the red arrow. If not MD, do you think that's a different DDR that's appearing with the 033--and separately, as well? Sorry for the confusion. Thanks in advance. Edited by profiler 08/13/2015 6:20 pm Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 08/13/2015 6:36 pm I'm thinking it is machine damage (ejection doubling). We hand another example on the forum once: It wasn't on the normal design, (image on the left) but shows as a reduction on your coin. So I feel it is MD. Report this Post to the Staff
profiler Valued Member United States 144 Posts	Posted 08/13/2015 8:04 pm Coop, thank you for your prompt reply and cogent comparative illustration (your library of examples amazes me...) I agree with your analysis, especially considering that your example shows similar notching on the same 2015 Heritage, and to a greater degree northwards. Is there a "mechanical" explanation how the notch on the round part of the pump is actually rounded with points at the tips (vs. flattened)? Because if it was a lateral shift in the coin between strikes, it seems like those points in the notch shouldn't be there. Does it have to do with the shape of the lower part of the pump, itself, being rounded? Thanks in advance. Best wishes. :) Edited by profiler 08/13/2015 9:28 pm Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 08/14/2015 01:15 am Not sure. But it usually follows something on the die. But what, I don't know on your coin. Report this Post to the Staff
profiler Valued Member United States 144 Posts	Posted 08/14/2015 01:34 am Thanks, Coop. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 08/14/2015 6:03 pm My brain has figured it out. That is contact from another coin after the coin was struck. It followed the line of the highest devices flattening where it made contact. (It could have happened when it was dropped from the presses into the bin. Note the speed they drop from the machine at the beginning of this video: https://search.yahoo.com/yhs/search...simp=yhs-004 Report this Post to the Staff
profiler Valued Member United States 144 Posts	Posted 08/14/2015 7:58 pm Cool video. Thanks for that, Coop. The coins are flowing like water there in the beginning. (It certainly explains why UNC coins from the mint have all those scratch marks.) Ok, so let's say it is contact from another coin (and I do believe this is post-strike, not doubling)... The radius of the notch in the lower part of the pump doesn't match with any part of a coin or devices that I can see. And the SW portion of that notch is straight, not curved. The cutout, as well, is also angular (wider at the top face of the coin than the bottom of the notch). I'm quite sure if mine were overlaid, the wouldn't be identical -- but they sure are very similar. The notching of the upper part of your example throws a monkey wrench into my similar examples. On the bottom part of the pump in your example, they're essentially the same. (I have three of these on Philly mints and haven't seen them on Denvers.) So do you completely rule out that this is a die issue at this point? Thanks in advance. :) Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 08/14/2015 9:38 pm Yes. The devices are reduced. Report this Post to the Staff
profiler Valued Member United States 144 Posts	Posted 08/15/2015 12:06 am Got it. Crystal clear now. Thanks, Coop. Report this Post to the Staff
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