I have two Lincoln cents I am in question about. The first is a 1980 D with what appears to be a RPM. I couldn't find any info on the variety and was wandering if it looks like a RPM to others. The second is a 1963 D Lincoln cent. I know there is a DDO of the 3 over 3 which this is not, but there is some doubling on the reverse. At first I thought MD - but it is not uniform and then DDD which it still may be, but I thought I read some where to look for ribbing on the letters for DD's. The ENT definitely has some ribs and there also seems to be a serif one the ends of a couple of letters, ie. C in AMERICA. I have looked at a lot of 1963 D's and have never seen this in the reverse. there is also doubling on the left end, the first left column and bottom of the building. Thanks for looking Mike
That's call machine doubling, see how the doubling looks flat shelf like? It was caused when the two die met durring the strike it had a giggle causing the flat shelf like features.
Can there be machine doubling only on the mint mark without any machine doubling on any other part of the obverse ?
They were put on the die separately ( not the coin as some think) and the same punch/font is used. So if it was a RPM with an extension on the top of the 'D', there would also be a similar sized extension on the inside bottom area of the 'hole' in the 'D'...There is not, so Die Deterioration on the punch is likely. If it was MD, I would expect to see some on the top of the date also. Either way, Die Deterioration or MD, it has no extra value. Not likely, as that area of the die would be the only moving area, and it 1unit, it might however show a locus of movements better than other areas. I don't think so here, IMO, Jim
Yes......machine doubling can be very deceiving.....shield nickels are famous for what one would swear is an rpd.....when in fact it is not. Shields were struck in nickel copper alloy. Pryor to the nickel 99 % of coinage was struck in silver much softer medal to work with. Plus if you have a shield nickel it is a tad bit smaller in diameter but a tad bit thicker. It is still the same weight but the thickness and the alloy made striking very hard learn in curve. So when the 2 dies meet and take a giggle or bounce machine doubling can occur anywhere on the coin.
Well Jim and I aren't in agreement but the value of machine doubling is studying it on coins will give you better understanding of the difference between doubled dies, repunched dates and mint marks. So yes worthless as in cash value as for education priceless understanding the difference.
Under my binocular scope there is a tiny bit of doubling on the inside bottom right hole of the D , It is a pretty worn coin but I cannot find any other doubling on the obverse side. - May have been worn off.
No worries mate that's what we do here.....sometime agree and sometime agree to disagree....never the less plant a seed and hope it grows....... there are so many sites like Varieityvista.com Google is your friend....to discover more.
I agree with Paddy, we just see photos whereas the posters see the actual tone. Shadows can lead to all kinds of expectations as well as interpretations. I have no problems with people that have different outlook than I do ( except for Coin Talks rules), as none of us, not even usually the possessor, knows the exact history, wear, and damage the coin accumulates before a member posts it. If they could only talk! Jim
