Germany PRUSSIA 4 Groschen 1797 A Friedrich Wilhelm II (1786-1797). Obverse: Bust facing right. Lettering: FRIDERICUS WILHELM. BORUSS.REX. Reverse: Crowned arms divides value and date. Lettering: 84 EX MARCA PURA COLON17 = 97 4. GR. ꟾ A. Silver. KM 362