10 Stuivers

Oudewater held out against Spanish forces during the early phase of the Dutch Revolt, and its siege coinage was struck from whatever metal the defenders could source. Tin was the material of last resort — almost never used for currency under normal circumstances — which places this issue among the most materially desperate of all Dutch siege coinages.

Gelder TO#64 is a recognized type, but survivors are rare and often poorly preserved, a direct consequence of tin's instability over time. Tin pest and oxidation have claimed most examples struck nearly 450 years ago.