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 Replies: 11 / Views: 9,570 |
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New Member
United States
15 Posts |
Hi all, I just found this CRHing and can't tell if this a true doubled die or if it is Machine Doubling. What do you guys think?   |
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Pillar of the Community
United States
1386 Posts |
Let me say first that I really suck at the DDO / DDR coins,But it looks like it to me. But that may not be saying much! |
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Valued Member
United States
221 Posts |
MD, See the flat shelf-like doubling on the date.
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Pillar of the Community
7234 Posts |
 Nothing more to add! |
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Pillar of the Community
United States
2563 Posts |
MD |
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Pillar of the Community
United States
3463 Posts |
 to the forum! Another thing to look at on this coin is the way the mint mark "S" is doubled the same as the other devices. That is another clue that this if Mechanical Doubling. In 1969, the mint mark was added to the die by hand, after the die had already been engraved with the other details. So a doubled die would show all of the details doubled except the mint mark, which was added to the die later. It is possible, and has happened, to have a doubled die that also shows MD. This webpage goes over some of this in more details: http://www.lincolncentsonline.com/1...20Cents.htmlKeep searching! |
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New Member
 United States
15 Posts |
Thanks guys! Now I get it!  I think it still looks cool and I'll keep it. Thanks for the link cwb; that's a cool site. |
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Pillar of the Community
United States
2775 Posts |
Another thing that's common this year is the floating roof. Check the reverse, makes for something else to look for, but like I said if present is petty common issue from die polishing. Thanks, Doug.
Edited by Halo1st
01/19/2017 5:50 pm
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Bedrock of the Community
United States
62064 Posts |
The devices on the real deal on the 1969S-1DO-001:   On your coin all the devices are reduced in size by the machine damage after the strike. On the real DDO for this year/mint all the devices are widened. Take another look with this information under your belt. Now you will see the difference. There are only a few examples of this die known, but 100's millions MD examples for this year. The MD examples were common on the 1968-1972 years on the cents. Die movement after the strike is to blame. Edited by coop
01/19/2017 10:47 pm
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Valued Member
United States
173 Posts |
For the brand spanking new hunters. This helped me a lot. Sometimes it is hard for us newbies to differentiate a MD versus Doubled Dies, because some MD can be very confusing. A rule of thumb I use is if the height are the same, then potentially doubled die, If not, then MD. Sometimes if I am unsure because the coin is either dirty, damaged, or poor lighting, I just check the pictures of the actual doubled dies for that coin's year and mintmark in the website (See my signature for links for those site). Because the doubling is engraved on the actual punching dies, the areas that has doubling has to match 100% to all areas showing doubling on the true doubled dies pictures.  Image:  20161221074337_IMG_1705.PNG |
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Bedrock of the Community
United States
62064 Posts |
Actually the dies are hubbed (not engraved) The hub looks just like a die except it is not a mirror of coin, but looks just like the coin:   The hub has the devices raised, the bust/building raised and there are lugs to line up the dies for the correct alignment. (which on the multi hubbed dies before the single squeeze dies was up to 3 or move times to get the devices stronger) The die on the right has the devices incuse, bust/building is incuse. Note how wide the top of the die is? The indented lugs are present. So why don't coin show these lug lines? The dies are tapered into the correct shape and dimensions.   Then stored away for use on the machines:  There are other steps as well, but I'm not going to complicate it more right now. Edited by coop
01/20/2017 3:27 pm
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Pillar of the Community
United States
3463 Posts |
Excellent Coop!  |
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Replies: 11 / Views: 9,570 |
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Posted 01/19/2017 2:45 pm
20161221074337_IMG_1705.PNG
