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 Replies: 10 / Views: 1,903 |
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Valued Member
United States
438 Posts |
Edited by kylecolb
08/26/2011 12:02 am
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Pillar of the Community
United States
4132 Posts |
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Valued Member
 United States
438 Posts |
Still new to the hobby, didn't realize that a double die is an error in the actual die.... So Double Die is where the die is damaged or distorted? Machine Doubling is where the coin was struck twice, or due to loose parts in the die? I just looked it up, so is that why some coins are known for their double dies? And pretty much any coin out there can have Machine Doubling? Do any collectors collect machine doubled coins? What would a machine double be considered, an error? I guess I am slightly confused on the difference after reading the definition of each. This forum has helped me learn a lot, hopefully I just learned something new. |
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Pillar of the Community
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4132 Posts |
In Machine Doubling the coin moves relative to the die during striking. It causes the devices to be smeared somewhat. It's really common and doesn't add value. A doubled die is where the doubling is on the die itself and is transferred on to all the coins made with that die. It happens because the die is made out of hard steel, so it requires several impressions by the hub to be fully formed. If the orientation of the die and hub changes slightly, then a doubled die is created. Doubled dies are more rare and are a collectible variety; they usually are more valuable depending on the strength of the doubling and the rarity. There are other kinds of doubling, like Die Deterioration Doubling, that also are common and don't add value. |
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Valued Member
United States
438 Posts |
The one I have doesn't look smeared at all under a higher power magnifier, I can see 2 different outlines of the "958" from 1958 on it....One is slightly less raised. Same with the lettering on it...Still a MD?
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Pillar of the Community
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Still MD, but you gave it a shot, and you learned something along the way, which is even better...
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Pillar of the Community
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A true Doubled Die will show both the main image and the doubled image with rounded images and sometimes full seperation. Machine Doubling shows a flat shelf like image next to the normal letter or number. Here's a GREAT image of Machine Doubling. You can see the flat area next to the letters and image.  The images below show true Doubled Die coins. Note the second area of lettering is rounded and not flat. The first is a 1995 DDO and the second is a 1972 DDO. You can see the round separation in the Doubled Die.   ANA ID: 3203813 - CONECA ID: N-5637 Clean a coin that may be worth collecting? Please DON'T! When in doubt, leave it dirty!! 
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Valued Member
United States
438 Posts |
What do you mean by rounded? That the letters are rounded? Or do you mean rounded as in an increase of elevation off the field?
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Pillar of the Community
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They are rounded as in standing high above the field on both the main image and the doubled image. Not with one side high above the field and the other side low and flat against the field.
On a doubled die, the letters and numbers were cut into the die a second time. When the die was then used to strike the coin, you get a pair of images struck into the coin. The post that John1 is pointing to is perfect. If you look at the examples in that thread you'll see the separation of the letters where the die had the letters cut into the face twice.
To see a Doubled Die coin at it's best, take a look at a 1955 doubled die cent. You can tell it had 2 sets of letters and numbers cut into the die.
ANA ID: 3203813 - CONECA ID: N-5637 Clean a coin that may be worth collecting? Please DON'T! When in doubt, leave it dirty!!
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Pillar of the Community
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2540 Posts |
Remember it is a doubleD die
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Replies: 10 / Views: 1,903 |
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Posted 08/26/2011 12:30 am
