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 Replies: 10 / Views: 2,338 |
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Pillar of the Community
United States
5964 Posts |
My main question is how exactly does raised Machine Doubling occur on an incused device? I can't seem to figure it out. I posted the Koala because it's so cute. My second question is why would they call this bird a Bald Eagle?   |
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Pillar of the Community
 United States
5964 Posts |
I could really use some help with this. Am I correct in assuming the relief on the die shifts horizontally while on it's way up from inside the incused part of the coin?
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Pillar of the Community
United States
2023 Posts |
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Pillar of the Community
United States
5964 Posts |
Thanks for the link Alpha2814. It says MD enlarges incuse devices. I think I understand that to mean the relief on the die makes the incuse device then moves making it larger. It also says a Doubled Die reduces them, I can understand that too- it made the relief on the die smaller. Where I'm having trouble is this post from yesterday http://goccf.com/t/287863which includes this pic from Ken Potter. I take it to mean Strike Doubling on the 2005 Quarter's incused devices appears like a Doubled Die.  I must be going wrong somewhere? Edited by CoinMasters
05/12/2017 5:37 pm
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Pillar of the Community
United States
5964 Posts |
I've never seen an incuse device with MD (that I know of). I guess it's not raised on the coin. The entire enlarged device- Original and "doubling" must be incuse on the coin. If that's not correct I hope someone tells me. Otherwise I'll consider the matter closed. Sadly though, I think we'll never know about the Bald Eagle.
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Pillar of the Community
United States
2775 Posts |
Quote:
My second question is why would they call this bird a Bald Eagle? Quote:
Sadly though, I think we'll never know about the Bald Eagle. The books say its due to the Bald Eagles feather colors. Think about it long enough or try it yourself and you'll see why people in Alaska don't walk around with fish on there heads! Thanks, Doug. Edited by Halo1st
05/12/2017 7:34 pm
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Bedrock of the Community
United States
62064 Posts |
The MD happens a lot on the ATB Quarters. The device on the die are raised on the incuse devices on the coin. I still haven't figured out a percentage yet, but it is a project I have in mind. (collect 100 random ATB Quarters and see how many are affected by the MD) Still working on this yet though. But about not seeing MD on incuse devices, they are often posted here and new collectors think they are doubled die, when the are MD examples. Examples?  The VDB on cents are incuse. (Raised on the die) When polishing happens, the VDB eventually wears off and no longer visible. When MD happens, just like the coin above the devices are enlarged. ATB Quarters with MD:       Because of the raised devices on the die, the incuse devices show even the slightest movement (MD) as enlarged on incuse devices. Raised devices on coins are just the opposite. They are reduced by MD from the original size. So how can we prove that incuse devices are different on hub doubled examples? We look at a coin that has hub doubling on the raised examples that are enlarged on a 2013P-1DR-002: http://www.coppercoins.com/lincoln/...ie_state=edsInitials: Raised devices compared side by side with a normal coin:   ONE CENT:   UNITED STATES OF AMERICA:    So do you see that the raised devices are raised on this doubled die? Now lets look at the incuse devices:    Did you note that the devices are reduced in size on the hub doubled incuse devices? On a lot of the ATB Quarters there are doubled dies in the center area of the coins, but not hub doubling on the outer edge devices that are incuse. This must be the nature of the single squeezed doubled dies. coophome= MD-DD ATB-cent coins Thanks to Steve Young for submitting this coin to me. |
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Pillar of the Community
United States
2775 Posts |
What I'm waiting to see or find are examples of die clashes with the raised devices on the die. Would think it'd be common, but no show for me. Thanks, Doug.
Edited by Halo1st
05/12/2017 9:38 pm
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Pillar of the Community
United States
5964 Posts |
So Halo1st, I infer from your comment the Bald Eagle looks bald from a distance. The answer to the eagle question is no longer in doubt. I will also remember not to put fish on my head. Once again wise words, from the complex Texan, thank you sir.
Coop thanks for your help. I had read Ken's pic (posted above) and the part where he said "The result is an effect exactly like that found on a Doubled Die" threw me a little. I guess I misread it, thinking he was saying it was raised. I couldn't understand how a raised device on the die could leave a raised area on the coin. I figured it out though, MD on an incuse device is totally incuse. The picture didn't help either, you know how sometimes the same pic can look incuse or raised. lol
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Pillar of the Community
United States
2775 Posts |
CoinMasters, I too had to reread that section Ken posted for the same reason. Found it sank in clearer the second time around. As for Bald Eagles and fish, see below the potential for being snatch bald by large birds of prey. Supposed to represent a Barred Owl in the picture, but makes my point. Thanks, Doug.  |
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Pillar of the Community
United States
5964 Posts |
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CoinMasters, I too had to reread that section Ken posted for the same reason. Yes, I must start reading writings from the experts more carefully, especially when I perceive the content to go against the grain. I think sometimes they overestimate laymen like me. Ha ha ha That sign is crazy! I reckon them talons would scalp a person indeed! I had to post the Koala. |
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Replies: 10 / Views: 2,338 |
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Posted 05/12/2017 12:44 pm
