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 Replies: 11 / Views: 2,648 |
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Pillar of the Community
United States
1219 Posts |
Don't have any material on these birds. Is this longacre doubling, Machine Doubling or maybe a doubled die?    |
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Pillar of the Community
United States
5615 Posts |
I would say it appears to be a doubled die,especially from the date, just my opinion...
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Pillar of the Community
United States
7629 Posts |
A doubled die would not happen on the date. The date digits were punched in by hand, much like the more modern mintmarks. What you have here is Machine Doubling. |
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Pillar of the Community
United States
5615 Posts |
Charles, if the dates were hand placed/punched could'nt the person of punched the date more than once, leaving the "doubled appearance". Also when the date is punched by hand, how do you get the resultant factor of Machine Doubling? I also see the the reverse under the ribbon the doubling also? I know you are the Cent or copper coin expert,and I would appreciate your input, however this, to me does not make sense, could you please explain, thanks, Mike... |
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Pillar of the Community
United States
1571 Posts |
morgans's dad, I agreewith Chuck, that it is a MD. The even, lateral spread, in all cases indicates Machine Doubling. In the case of the date whwere it shows very clearly, and, that the RPD, re-puinched date does not leave a flat shelf-like surface, as shown in the pictures. It, RPD, will show the nearly crevace-like appearance. That is how I tell the difference between the two. it Is confusing, to say the least. I am no expert, and the best I can do is opine. thanks, Dick Edited by livingdinasaur
06/09/2009 8:01 pm
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Bedrock of the Community
United States
17884 Posts |
On a (roughly) pre-1909 coin a doubled die will not affect the date. Longacre doubling also does not occur on the date.
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Pillar of the Community
United States
2540 Posts |
morgans's dad
With hand punching sure you can have doubling of the date, but it may or may not affect all digits.
However, in this instance, this appears to be MD.
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Pillar of the Community
United States
1571 Posts |
comndor101, I ask your indulgence, and opinion:  The clash line goes from the "M" to the "C", but is very weak.This was from a Seated Liberty 50cent OBV die   clash remnant at K10. This clash was from REV-REV dies, and, the die from the 25cent REV was rotated vertically.   . Does Machine Doubling occur on IHC, and FE? Why does LD occur on some of the letters, and not all? If you find letters that are weong/ don't belong, please excuse, as my vision does not allow me to see the letter I want to hit, every time, I am legally blind. Thanks, Dick Edited by livingdinasaur
06/10/2009 5:00 pm
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Bedrock of the Community
United States
17884 Posts |
Machine Doubling can occur on any coin series, it results from parts in the press working loose from vibration during use. Tighten a few bolts and the Machine Doubling stops. When the dies are first made all the letters do have the doubling but it is supposed to be removed during the basining/polishing of the die after the hardening process. My personal theory is that the doubling was intentional with its intent that it be used as a visual guide to let them know when the die had been basined properly. As the die was polished the doubling would be ground away. The mint worker could polish, stop and check for the doubling and see which areas still needed more work. It could also be used to judge the hubbing process. When the doubling began to start showing up after a hubbing you knew you had impressed the hub deep enough and another hubbing would not be needed. But they were often short on dies and so dies that had not had the doubling fully polished away were often pressed into service. This could result in doubling on some letters but not others. The doubling also fades away as the die wears or if it needs further polishing such as removing clash marks. All of these can result in the doubling only being on some but not all areas.
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Pillar of the Community
United States
1571 Posts |
Condor101, thanks for youir response. I hd not read of some of the things you mention,. and agree that there is merit. Your theories make sense. Do you mind if I quote you? I think others might appreciate the tid-bits of not too well know information, you brought out. Thanks again. The "quote" will be on Coppercoins.com forum.
Dick
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Bedrock of the Community
United States
17884 Posts |
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Pillar of the Community
United States
2540 Posts |
Condor's comments, as usual, are spot on!
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Replies: 11 / Views: 2,648 |
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Posted 01/10/2009 7:27 pm
