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<p>[QUOTE="Kevin Mader, post: 3982954, member: 106826"]During the minting process there are two dies that make the copper planchet into a coin. They are commonly referred to as the anvil and hammer dies (picture a blacksmith hammering on the anvil). One of the dies is fixed and the other travels up and down. Each cycle/strike, a new planchet is fed into the press and the hammer die comes down to trap the planchet between the two dies. If a planchet isn't in place when the hammer die comes down, the two dies meet. Die transfer happens if the collision is strong enough. Part of the image of the hammer transfers to the anvil die...and visa versa. When a new planchet is fed in and in place for the next strike, the clash marks are stamped into the coin along with the expected design image. It's not uncommon to see a coin with both the obverse and reverse with the clash witness marks. But if one die is more damaged than the other, that one may be removed to be reworked/polished thereby removing, or obscuring in many instances, the clash mark. On your coin, the obverse image looks pretty clean in your photo. My guess: that die was removed to be fixed. The reverse image shows the witness marks of the die clash. Most noticeable is the throat/chin area of Lincoln appearing in the bay of the Memorial. So I speculate: the original pairing of dies during the clash were separated and a new obverse die inserted to continue work.[/QUOTE]</p><p><br /></p>
[QUOTE="Kevin Mader, post: 3982954, member: 106826"]During the minting process there are two dies that make the copper planchet into a coin. They are commonly referred to as the anvil and hammer dies (picture a blacksmith hammering on the anvil). One of the dies is fixed and the other travels up and down. Each cycle/strike, a new planchet is fed into the press and the hammer die comes down to trap the planchet between the two dies. If a planchet isn't in place when the hammer die comes down, the two dies meet. Die transfer happens if the collision is strong enough. Part of the image of the hammer transfers to the anvil die...and visa versa. When a new planchet is fed in and in place for the next strike, the clash marks are stamped into the coin along with the expected design image. It's not uncommon to see a coin with both the obverse and reverse with the clash witness marks. But if one die is more damaged than the other, that one may be removed to be reworked/polished thereby removing, or obscuring in many instances, the clash mark. On your coin, the obverse image looks pretty clean in your photo. My guess: that die was removed to be fixed. The reverse image shows the witness marks of the die clash. Most noticeable is the throat/chin area of Lincoln appearing in the bay of the Memorial. So I speculate: the original pairing of dies during the clash were separated and a new obverse die inserted to continue work.[/QUOTE]
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