2 Thalers / 31/2 Gulden - Charles I Ulm Cathedral

Issued across three years to fund the ongoing restoration of Ulm Minster, which at the time remained unfinished after nearly five centuries of interrupted construction. The Minster's nave had stood roofless for decades, and the Württemberg court used commemorative coinage as a direct revenue mechanism — proceeds were channeled into the restoration fund rather than general circulation. The tower, ultimately completed in 1890, briefly became the tallest structure in the world at 161.5 meters.

The dual denomination — 2 Thaler and 3½ Gulden — reflects the awkward coexistence of north and south German monetary conventions just before unification rendered both obsolete.