1880 Assay Commission Medal - JK-AC-21, Silver, JK-AC-20 Mule
Strike Type
Coin Details
Description
The 1880 Assay Commission medal JK-AC-21 in silver is a precious-metal striking of the mule variety, combining the rarity of a mismatched die pairing with the scarcity of a silver composition. This piece represents the convergence of two collecting interests — mule varieties and precious-metal strikings — in a single object, making it one of the most sought-after items from the complex 1880 group. The silver mule designation as "JK-AC-20 Mule" indicates that one of the dies used in this striking was from the JK-AC-20 Hayes portrait, paired with an incompatible reverse or variant die. The survival of a silver mule implies deliberate preservation rather than accidental distribution, as the Mint would have recognized the die mismatch and the precious metal would have warranted careful handling. Silver mule medals from any year in the Assay Commission series are extraordinarily uncommon. The combination of limited silver production, the inherent rarity of mule pairings, and the likelihood of discovery and destruction during quality control creates a compounding scarcity that makes surviving examples particularly noteworthy. This JK-AC-21 silver mule may exist in only a handful of known specimens.
Rarity Notes
JK-AC-21 (1880) in silver. Mule variety — mismatched die pairing in precious metal. Among the rarest varieties in the Assay Commission series.
Cross References
PCGS #972474; JK-AC-21; 1880 Assay Commission
External References
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Other Strike Types in This Series

1860 Assay Commission Medal - JK-AC-1, Bronze, Longacre Pattern
1860 Assay Commission Medal - JK-AC-1, Copper, Longacre Pattern

1861 Assay Commission Medal - JK-AC-2, Copper, Longacre Pattern
1867 Assay Commission Medal - JK-AC-3, Aluminum, Longacre Pattern

1867 Assay Commission Medal - JK-AC-3, Bronze, Longacre Pattern
1867 Assay Commission Medal - JK-AC-3, Nickel, Longacre Pattern(Special Strike)
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