1 Guldenthaler Siege coinage

Ulm struck siege coinage in 1704 during the War of the Spanish Succession, after the city found itself under threat following the catastrophic Bavarian and Franco-Bavarian defeat at the Battle of Blenheim in August of that year. With normal commerce disrupted and the monetary supply uncertain, the city produced emergency issues from whatever silver was available — a practice that accounts for the often irregular planchet quality seen across surviving specimens.

Blenheim effectively ended Bavarian control of the region and forced Ulm back under Habsburg authority by September 1704.