1990 D Jefferson Nickel Partial Collar Error

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Author	Replies: 6 / Views: 2,443
BlueSolo Pillar of the Community United States 740 Posts	Posted 01/01/2016 12:31 am I was surprised to find this partial collar error(?) while I was on vacation in New York. I believe it is a partial collar error, the only reason I have to doubt it is the rim curves upward. But I have seen this on another image I compared it to. What do you guys think: partial collar or PMD? Please let me know if a better picture of something is needed. Report this Post to the Staff

mikediamond Pillar of the Community United States 2739 Posts	Posted 01/01/2016 09:46 am While it resembles a partial collar error, it is, in fact, an altered coin. The lower half of the edge was rolled and squeezed to a smaller diameter. The warping of the reverse peripheral letters is solid evidence of this. Error coin writer and researcher. Report this Post to the Staff
BlueSolo Pillar of the Community United States 740 Posts	Posted 01/01/2016 2:32 pm Thank you Mike. My original reaction was PMD when I saw the curve, but this was the coin I compared to that made me think otherwise: https://goccf.com/t/241095 It looked like the rim was curved in the second picture Report this Post to the Staff
mikediamond Pillar of the Community United States 2739 Posts	Posted 01/01/2016 6:21 pm Just to be on the safe side, why don't you provide face-on photos of the full obverse and reverse. Error coin writer and researcher. Report this Post to the Staff
BlueSolo Pillar of the Community United States 740 Posts	Posted 01/01/2016 8:48 pm This was the best I could do right now, I don't have good lighting so I had to work with weird angles. I also noticed that the whole coin is a slightly bent ) as seen in the 3rd picture where you can see under the coin. How are coins ejected after being struck? Could this have any impact on the curve of the rim or why it is bent? Report this Post to the Staff
mikediamond Pillar of the Community United States 2739 Posts	Posted 01/01/2016 11:01 pm My original conclusion stands. The obverse perimeter shows none of the widening one would expect if its expansion was unconstrained by the collar. As to where and how the damage occurred, I have no basis for speculation. Rolling and squeezing of a coin can occur inside or outside the Mint. I have seen coins rolled and squeezed between strikes, showing that some pieces of mint equipment can produce this effect. Error coin writer and researcher. Edited by mikediamond 01/01/2016 11:03 pm Report this Post to the Staff
BlueSolo Pillar of the Community United States 740 Posts	Posted 01/01/2016 11:40 pm I see, since a lack of collar would allow the rim to expand under the high pressure strike.. That's a good diagnostic. Thanks for taking a second look! Report this Post to the Staff
	Replies: 6 / Views: 2,443

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