Germany BRANDENBURG 6 Groszy 1686 BA Konigsberg. Friedrich Wilhelm(1640-1688). Averse: Friederich Wilhelm bust right. Lettering: FRID.WILH.DG.M.B.S.R.I.A.C &. Reverse: Crown over value and triple crest; date below. Lettering: SUPREMUS DUX IN PRUSSIA VI 1686. Silver. KM 429