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Replies: 14 / Views: 214 |
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Valued Member
United States
200 Posts |
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Bedrock of the Community
United States
77329 Posts |
Is Machine Doubling even a thing on edge lettering?  This kind of thing isn't in my wheelhouse, so I'll let the others chime in. If any member can answer my question, that would be great. I want to learn more about it.
Errers and Varietys.
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Pillar of the Community
United States
1716 Posts |
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Bedrock of the Community
United States
77329 Posts |
Thank you, snailking1 for the link.  That was helpful.
Errers and Varietys.
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Pillar of the Community
 United States
8918 Posts |
I would be interested in knowing how the edge lettering is applied. Are they struck or is it made into the collar, and at what point are they put there if struck, before or after the coin itself is struck? ADDED: This explains it somewhat, so it would appear to be after. LINK https://www.error-ref.com/absent-edge-lettering/
-makecents-
Edited by -makecents- Today 3H 16M ago
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Bedrock of the Community
United States
77329 Posts |
Thank you, makecents for the link. I understand it a bit better now. 
Errers and Varietys.
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Bedrock of the Community
Canada
21790 Posts |
To add to the site that -makecents- supplied, the lettering is applied on a seperate machine by a disc with raised lettering known as a roller die. This is prone to slippage which can give the appearance of Machine Doubling. This is run at high speed so many minor anomolies can occur which add no value to the coin. The ones with the most value are coins where the lettering is missing.
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Pillar of the Community
 United States
8918 Posts |
Thanks, JimmyD, that makes sense, I could not imagine it being actually "struck" into the edge as we think of obverse and reverse dies being struck. So this would make Machine Doubling as we know it impossible. I suppose it could still be considered a type of Machine Doubling as it was made by a machine. 
-makecents-
Edited by -makecents- Today 2H 40M ago
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Pillar of the Community
United States
1716 Posts |
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Pillar of the Community
 United States
8918 Posts |
Thanks, snailking1. So in the first link you provided, it actually states that the proof coins edge lettering is applied in one of the ways I thought it might be, by the collar, done at the same time the obverse and reverse is struck. That's interesting that proofs and business strikes are done differently but not surprising.
-makecents-
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Pillar of the Community
United States
1716 Posts |
Quote:
That's interesting that proofs and business strikes are done differently -makecents-, Yes, I found that interesting, also!
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Moderator
 United States
103382 Posts |
lots of great resources to refer to on edge lettering. Thanks Folks 
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Bedrock of the Community
Canada
21790 Posts |
Quote: That's interesting that proofs and business strikes are done differently As with most things, there is a reason for this. Because business strikes are run at a high speed, the lettering could not be applied with the collar at the same time. Proofs are run at a lower speed enabling the lettering to be on the collar die and applied at the same time. This also why the lettering always faces up to the Obverse.
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Pillar of the Community
 United States
8918 Posts |
Quote: Proofs are run at a lower speed enabling the lettering to be on the collar die and applied at the same time.  
-makecents-
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Bedrock of the Community
United States
77329 Posts |
Very good information. Thank you to all of you who gave links and explained it well. 
Errers and Varietys.
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Replies: 14 / Views: 214 |
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