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Error Coins Error Coins 1967 Kennedy Half Dollar When this coin was struck there was apparently a scrap of iron or steel sitting on the planchet. The scrap was smashed into the planchet surface during the strike. It remained imbedded in the coin for 44 years until the coin was discovered in circulation in 2011. 175017551 Iron/Steel Imbedded Scrap close-up The scrap shows faint detail of the tail feather design. It did not develop full detail when struck since the scrap metal was harder than the silver-clad alloy of the half dollar planchet. 175017552 1979-D Quarter with Missing Obverse Clad Layer This coin was found in vending machine change. The obverse copper-nickel clad layer on the original planchet was missing so the obverse design was struck onto the exposed copper core. Due to the missing layer the total coin weight was over 1 gram less than normal. 175128329 1979-D Quarter with Missing Clad Layer; Reverse Side This coin is certified by NGC as "Mint Error Missing Obverse Clad Layer" and graded MS-63. 175128330 Proof 1983-S Proof Kennedy Half with Rotated Die Error This coin turned up at a local bank. It was apparently broken out of a proof set and spent. The reverse is rotated by about 90 degrees as shown in this mirror photograph. The coin is certified as "Proof Rotated Dies" by ANACS and graded PR-62 DCAM. 175128331 Double-Struck 1999-D Jefferson Nickel, Obverse This coin was struck normally at the Denver mint in 1999 but failed to eject properly from the press after the strike. It came back down on the press, partially overlapping the coining chamber. It was struck again, creating a new partial impression over the bottom part of the coin. The result is this neat error which just happens to have two dates. 175605020 Double-Struck 1999-D Jefferson Nickel, Reverse This nickel is graded MS-64 by ANACS. 175605021 Proof Pattern Large Cent J-160: Obverse This rare Pattern cent was double-struck in the collar. Proof coins are usually struck twice to bring out maximum detail but in this case either the coin or the obverse die shifted between the first and second strikes which caused clear doubling of many areas of the obverse. 204002960 Proof Pattern Large Cent J-160: Reverse The reverse is normally struck. This suggests the most likely cause of the error is that the obverse die rotated in its socket between strikes. If the coin itself did not shift while positioned on the reverse (anvil) die we would not expect any reverse doubling. That is indeed the case. 204002966 Proof Pattern Large Cent J-160: Date 1 The date produced by the first strike is positioned far to the left of the second date. 204002961 Proof Pattern Large Cent J-160: Date 2 Another view of the date. The second strike flattened the digits created in the first strike but those are still quite visible. 204002962 Proof Pattern Large Cent J-160: Profile Clear doubling is seen on the eyelid, lips, nose, and chin. 204002963 Proof Pattern Large Cent J-160: LIBERTY The double strike caused major distortion to the letters in LIBERTY. 204002964 Proof Pattern Large Cent J-160: NGC Slab NGC attributed this error coin correctly. The assigned grade is PF-65 BN. 204002965 1857 Flying Eagle Cent - Clipped Planchet Certified by ANACS as a genuine mint error: "Curved Clip", graded VF (Very Fine) 20. 205781507 1857 Flying Eagle Cent Clipped Planchet The blank-copper discs used to make coins (called planchets) were punched out of a sheet of metal alloy. To get as many planchets as possible from each sheet, the punches are made very close together. In the case of this coin, the punch was positioned such that it slightly overlapped a previously-made punch hole. So, the planchet had a small curved section missing from the edge. 205781508 1857 Flying Eagle Cent - Reverse When the incomplete planchet was struck the resulting coin was missing a small area above AM of AMERICA (as seen on the obverse). The corresponding area on the reverse is likewise absent. An error like this on a Flying Eagle cent is very rarely seen. 205781509