2007-D 1c Lincoln Cent Struck on Steel Washer PCGS MS64
PCGS 2007-D Lincoln cent struck on steel washer. The coin has the distinctive "hole" in the center, which is from the washer's central hole. It weighs 2.5 grams, and is magnetic (because it is steel.)
The error ocurred when a steel washer fell into the striking chamber and was struck by the dies. Because the Mint is a factory, with lots of machinery, washers are something which could conceivably fall off a press and be struck by the dies.
Lincoln cents struck on washers are incredibly rare, and only 7 are known to us. Of the 7 (which includes the present specimen), only 4 have dates. This is a superb example of this rarity, and is also the most "modern" date example known.
PCGS MS64 with luster present, and light gray toning. Only the most minute areas of rust on the rim (rust is common on washer struck coins.) A beautiful example.