Austrian Gulden & Ducats, 1763–1789 A Javascript-based web calculator for Austrian ducats (ordinary, imperial, Kremnitz) and gulden/kreuzer, reflecting four conversion regimes: 1 Nov 1763 to 30 Apr 1771 1 May 1771 to 14 Sep 1783 15 Sep 1783 to 31 Jan 1786 1 Feb 1786 to 31 Dec 1789 http://dexteredge.org/ducatcalculator.html