Germany. Ferdinand II (1618-1637). Double-Ducat Klippe 1619 for the coronation in Frankfurt as Emperor of the Holy Roman Empire. Förschner 62; cf. Fried. 964. AR. 2.93 g. RR. 23x23 mm. Repertory Ink letter (?) on obverse and reverse. A super example with underlying luster. With O'Bryne collection's label. Choice AU. Ex Sotheby, 20 May 1964, O'Byrne Collection, part V, lot 181. Ferdinand II has been previously crowned King of Bohemia on 29 June 1617 in Prague and King of Hungary and Croatia on 1 July 1618 at Pressburg.