4 Doubles Mule

This piece results from a mule pairing — obverse and reverse dies that were never intended to be used together. Guernsey's early copper coinage was produced under contract with English manufacturers, and the loose oversight of these arrangements created opportunities for unauthorized or accidental die combinations that slipped through without correction. The 4 Doubles denomination itself was introduced in 1830 as part of Guernsey's effort to formalize a local copper currency distinct from British regal coinage, which islanders had long supplemented with French and countermarked pieces.

Mule specimens from this first year of issue are genuinely rare and appear infrequently in specialist sales.