500 Gulden

The Wiener Stadt Banco was one of the oldest municipal banking institutions in Europe, founded in 1706, but by 1806 it was operating under severe fiscal strain. The Napoleonic Wars had devastated Habsburg state finances, and enormous indemnities following the 1805 Treaty of Pressburg forced emergency note issuance far beyond what silver reserves could support. This 500 Gulden denomination fed directly into that inflationary spiral — within five years, the Finanz-Patent of 1811 would devalue all Banco notes to one-fifth of face value, making high-denomination paper catastrophically unpopular in retrospect.

Large-denomination survivors are rare precisely because holders had the most to lose in 1811 and made every effort to spend them down beforehand.