1942 d/d nickel

[CarterRose]

The 1942 D/D Jefferson Nickel is a notable die variety in American numismatics. The designation refers to a specific type of error known as a repunched mint mark (RPM). In this case, the "D" mint mark, indicating the coin was struck at the Denver Mint, was improperly punched into the die used to strike the coins.

More specifically, this variety is known as the "D over Horizontal D." During the die preparation process, a "D" was first punched into the die on its side, in a horizontal orientation. This mistake was then corrected by punching another "D" in the proper vertical orientation over the first impression. On the finished coins, remnants of the underlying horizontal "D" are visible next to the primary, correctly oriented mint mark.

This specific error is a well-documented and popular variety among collectors. It is officially cataloged as FS-501, a designation from the Cherrypickers' Guide to Rare Die Varieties, which is a standard reference in the field. The inclusion of this coin in major references like the PCGS CoinFacts guide confirms its significance and collectibility within the Jefferson nickel series. It is a distinct error that is sought after by specialists in die varieties.