1931

Production at Philadelphia in 1931 fell to 3,150,000 dimes, a figure that reflects the deepening Depression more than any deliberate Treasury policy. Commerce had slowed across the country, banks were failing in waves, and the demand for new coinage simply was not there. The Mint scaled back across nearly all denominations that year, and dimes felt the squeeze acutely. Most 1931 Philadelphia dimes that survived entered circulation immediately and stayed there for years. By the time numismatists began hoarding rolls of recent dates in the 1940s, attractive uncirculated 1931 pieces had become noticeably scarcer than the mintage figure alone would suggest. The date sits in conditional semi-key territory for collectors building a high-grade Winged Liberty Head set.

Adolph A. Weinman's portrait of Liberty in a winged cap holds its detail well on 1931 Philadelphia strikes, which tend to be sharper than the branch mint output from the same year. The reverse fasces, bound by an olive branch, displays the central horizontal bands that grading services examine for the Full Bands (FB) designation. FB on a Mercury dime requires complete separation across both middle bands, and the Professional Coin Grading Service (PCGS) and Numismatic Guaranty Company (NGC) reserve the label for coins meeting that strict standard. The 1931 dime carries the standard specifications: 90% silver and 10% copper, 2.5 grams, 17.9 millimeters, with a reeded edge. Authentication is generally straightforward on this date, though collectors should check weight standards and examine the fields for evidence of cleaning, which afflicts many surviving examples held casually over the decades.

Population data from PCGS and NGC shows a moderate supply through MS65 with a clear thinning above MS66 FB. Heritage Auctions and Stack's Bowers have handled premium examples regularly, and FB-designated pieces draw significant interest. The date rewards patience. Read more at the Mercury Dime series history.