Germany Strasbourg 1 Ducat 1617 100th Anniversary of the Reformation. Strasbourg State; striking in Silver of the Commemorative Gold Klippe Ducat; 1617 on the 100th Anniversary of the Reformation. Averse: . POST. / TENEBRAS. / .LVX. / 1517. Reverse: .IV. / BILAEVM. / ARGENTORA/TENSE. / 1617. Silver. Whiting 93