1/4 Thaler - Frederick William I Gelderland

Frederick William I absorbed Gelderland — specifically the Upper Quarter centered on Geldern — as part of the territorial settlement following the War of the Spanish Succession, confirmed by the Treaty of Utrecht in 1713. This regional coinage was a direct administrative assertion of that new sovereignty, struck to circulating standards that acknowledged local monetary traditions rather than imposing the Brandenburg-Prussian system outright. The Gelderland types are distinct from Frederick William's main Prussian series and were minted in relatively limited quantities.

The .868 fineness aligns with established Rhenish silver conventions rather than Prussian mint standards of the period.