1/5 Gulden - Marshal Lefebvre French Occupation, Trial Strike

Danzig fell to Napoleon's forces in 1807 after a two-month siege, and the city was reconstituted as a nominally free republic under French protection — with Marshal François-Joseph Lefebvre installed as its first duc. These trial strikes were produced during the brief window when French authorities were negotiating a new monetary framework for the city, before settling on the gulden coinage that would define Danzig's Napoleonic-era currency. The existence of multiple Koppmann reference numbers suggests at least two distinct die pairs were tested, a common practice when a mint was establishing production parameters under new political administration.