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 Replies: 8 / Views: 1,128 |
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New Member
United States
24 Posts |
I've seen this a few times and wonder what causes it. Looks like the letters are hit five or six times. Can anyone help me understand this?  *** Moved by Staff moved to a more appropriate forum. *** |
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Moderator
 United States
56855 Posts |
MD,machine doubling. John1  |
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Bedrock of the Community
United States
10047 Posts |
  w/ John1 Very cool looking in this case. MD = the dies are not as tight in the machine as they were when first installed. When the coin is being pressed, the dies move horizontally and a smearing (more or less) affect takes place which leaves multiple images. Do a search here for MD, you will find a lot to read. How much squash could a Sasquatch squash if a Sasquatch would squash squash? Download and read: Grading the graders Costly TPG ineptitude and No FG Kennedy halveshttps://ln5.sync.com/dl/7ca91bdd0/w...i3b-rbj9fir2 |
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Pillar of the Community
 United States
2843 Posts |
This is tricky. It has the signs of being a true doubling. That is because the letters are incused. The rules are reversed for letters that are incused in the coin, which in turn are raised on the die as opposed to letters that are raised on the coin which are in turn incused on the die. So Mechanical Doubling generally causes a reduction in the size of the letters, while a true doubled die would have an enlargement of the letters. With incused letters, such as the ones on your coin, the enlargement is a sign of Mechanical Doubling. |
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Pillar of the Community
United States
8715 Posts |
The rule for MD/DD is: Raised devices- Apparent doubling, reduction in size of devices - MD ( Machine Doubling)
- Doubling, enlargement of devices - DD (Doubled Die)
Incuse devices- Apparent doubling, reduction in size of devices - DD (Doubled Die)
- Doubling, enlargement of devices - DD (Doubled Die)
The coin in the photograph exhibits Machine Doubling due to the enlargement of the devices, and the fact that they are incuse. |
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New Member
 United States
24 Posts |
Sweet thanks for the info I had an idea about raised doubling and enlargement but wasn't aware about the incuse being smaller for a DD. Good to know.
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New Member
United States
24 Posts |
I had originally figured that the inner part of the letters that are still level with the field would show the doubling which is what I had gotten used to looking at.
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Pillar of the Community
Canada
2784 Posts |
Jay_R welcome to the forum. I am glad you brought this up. I have purchased a set of coins. directly from the Royal Canadian Mint. this coin was struck in the first 1000 coin. that only took minutes. I will add the pictures of this first struck coin. now remember this is in the first 1000 coin made from this new 2018 dies. I would like to know every bodies thoughts. |
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Pillar of the Community
Canada
2784 Posts |
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Replies: 8 / Views: 1,128 |
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Posted 06/05/2018 4:41 pm
