Obverse Dies: 1 Known
All Carson City dimes from 1871 through 1874 are found with wider reeding than coinage from the Philadelphia or San Francisco mints. Additionally, only one reverse die was used to strike the Carson City mintage for those four years. Both of these characteristics can be used as a diagnostic to verify genuine Carson City dimes from 1871 through 1874. Carson City dimes are typically found with surface porosity as many have been recovered from the ground. Larry Briggs also notes in his Comprehensive Encyclopedia of United States Liberty Seated Quarters that "The Carson City mint was known to shortcut their annealing process and instead of using 90% silver, 10% copper mixture, used pure Comstock silver."
Without copper in the alloy to harden the silver, Carson City dimes would be highly susceptible to environmental factors.
Plate Coin: Fortin 101, Original Gunmetal Gray Toning with Problem Free Surfaces For An 1871 Carson City Dime, One of the Highlights of the Fortin PCGS Registry Set
Harold M. Budd, Sr. - Numismatic Gallery (Abe Kosoff and Abner Kreisberg) - Ben Stack (Imperial Coin Company) - Ambassador and Mrs. R. Henry Norweb, acquired July 29, 1954 - Bowers & Merena 10/1987:529 - Waldo E. "Pat" Bolen, Jr. - Numisma ‘95 (David W. Akers, RARCOA, Stack's) 11/1995:2134 - American Numismatic Rarities 1/2005:373 - Rusty Goe, 1/2005 - Battle Born Collection - Stack’s/Bowers 8/2012:11102, $97,750
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