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 Replies: 7 / Views: 3,303 |
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New Member
United States
31 Posts |
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Rest in Peace
10197 Posts |
The devices have been reduced in size from normal and have a shift bounce, besidies die wear, a lot going on but no DD. Notice the ED, the letter has been hit on top and shaved on right but overall size and shape is for a normal sized detail. Notice in last pix how close it looks BUT see the shelving on MD that parrallels the whole outline and doubling has a more rounded look ?    Edited by Crazyb0
09/19/2017 4:31 pm
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New Member
 United States
31 Posts |
I see what you are saying, but does Machine Doubling cause split sheriffs? I am asking to learn, not be argumentative. I thought the s and t were split, as well as the lu in pluribus. I have a great picture of split on N in the one, but it's on computer at home. I am very thankful for your help |
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Pillar of the Community
United States
5964 Posts |
Machine Doubling, Die Deterioration Doubling, and Over-Polishing can at times make devices appear doubled and sometimes with split serifs. The thing to remember is with a Doubled Die the size of the devices are normal + the doubling = enlarged devices. Look at the top of the D in United. The size of the device is reduced by the "doubling". With MD, the "doubling" is robbed from the device. With DD the doubling is added to it. |
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Rest in Peace
10197 Posts |
Coin masters, wonderful explanation! Another point to remember with a "split" otherwise known as "notching", is that like in drawing above there is a visible line emanating from the notching...no line of separation means no doubled die. "Split serifs" refer to repunched mintmarks, a totally different animal than DDO / DDRs. That is where the second punching has been rotated slightly making the corners of S or D "split". A doubled die is a shifted hubbing, one whole die is turned/moved to create the effect all over the working dies. Edited by Crazyb0
09/19/2017 8:31 pm
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Pillar of the Community
United States
5964 Posts |
The separation line denotes a difference in height. The doubling on the Doubled Die coin is usually slightly shorter, with the flat "doubling" on MD, it can be significantly shorter. Split serifs often occur on Doubled Dies as well as RPM's due to rotation and double striking when a die receives it's design elements. If it's the master die, many working dies receive it as well. If the master die is normal, one die can receive doubling when rotation and double striking occurs. The latter is preferred because it makes fewer Doubled Dies than Master Die Doubling.
Edited by CoinMasters
09/20/2017 10:34 am
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New Member
United States
31 Posts |
I think I finally understand. So if I am correct, a doubled die would make original look fatter, with a clear line of separation, and be the same height, without making original look smaller? so what is fat lettering then? is it just a wider die?
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Rest in Peace
10197 Posts |
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Replies: 7 / Views: 3,303 |
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Posted 09/19/2017 4:02 pm
