2 Pfennig - Leopold I Vienna

These small billon pieces were struck during one of the most financially strained periods of Habsburg rule, when Leopold I faced simultaneous pressure from Ottoman expansion in the east and Louis XIV pressing on the Rhine frontier. The Imperial Mint at Vienna was producing low-denomination coinage in enormous volumes to meet everyday transaction demand, and billon — debased silver — was the practical answer to a shortage of fine metal diverted toward war expenditure.

The Herinek references spanning five varieties (2037–2041) reflect meaningful die variation across the issue's six-year run, not mere collector splitting.