1989-P Lincoln cent with an odd MAD

[trails]

I just found this oddity yesterday and while it is a MAD strike, there is another peculiarity. The second false rim, indicated by the arrows, is beveled towards the main rim. Also, the inner edge of the false rim is higher than the the rest of that rim.

Talked to Mike Diamond concerning this coin and he had not seen this effect before. Have any of you seen this effect? Do you have an ideas on how it was created?

Thanks.
BJ Neff

[thecentcollector]

I actually just found ( i believe) was an 87 with this same phenomena. Hopefully i can dig it back out,..

[kloccwork419]

I just found one the other night also. i believe it was a 92

Ill check back thru some tubes to see if I can find it

[lineop3]

I was getting ready to post mine. I just found an 84 & 80.

Aisha

[jcuve]

I just want to get onto the same page. There's a proto-rim, the one formed in the upset mill before striking; the outside rim on a MAD. Then there's a normal rim formed from the rim-gutters during a strike, and I believe, would be the inside "rim," called a "false rim" here, found on a MAD. Here BJ has a example of a inner "false rim" with unusual characteristics. I'm not sure if I have seen this configuration but will check a few MADs and contemplate it.

[trails]

Jason has it correct. This is not what is commonly referred to as a "railroad track" effect. It is a bit more complicated and with the searching of the Lincoln cent series that I have done, I never ran across one with this oddity. As I said, it is off to Mike and it will be interesting what he says.

BJ Neff

[jcuve]

I'll take a guess that maybe the momentum of the strike was great enough to carry the part of the coin between the rim-gutter and the proto-rim to the extent the stretching made the space between appear beveled.

The only thing I have that is even close (and may have nothing in common; illustrated below) is a '88 MAD that is about 8% misaligned which has a funny division between the false-rim and the proto-rim, which I believe, was the energy of the strike extended the space between. I could be totally off on this though. Interested to see what Mike has to say...

[lineop3]

1984 mad

I finally got this shot to the point where you could see the rim is separated and raised from the edge. The arrow points out the gap.
(This might not be what Robert is talking about). Thought maybe I was on the same track.

Aisha

[mikediamond]

I have BJ's 1989 cent. I see no bevel on the design rim when I examined it at a low angle. The design rim is the rim the arrows point to; it is not a false rim. The outer "rim" is just metal that bulged up slightly between the die neck and collar. It can no longer be considered the proto-rim since its shape has been transformed by the horizontal compressive forces set up by the strike. The upper surface of the design rim appears parallel to the field. The appearance of a bevel is probably due to a slight elevation along the internal margin of the design rim. I suspect this is merely die deterioration.