1666, Emperor Leopold I "the Hogmouth". Scarce Silver 3 Kreuzer Coin. Breslau! Mint Year: 1666 Reference: KM-1230. Ruler: Leopold I "the Hogmouth". Denomination: 3 Kreuzer (Groschen) Mint Place: Breslau (Wroclaw, Poland) Assayer: Wardein Salomon Hammerschmidt (SHS) Diameter: 23mm Material: Silver Weight: 1.74gm Obverse: Wreathed and armoured bust of Leopold right. F ...