House of Habsburg / RDR Rudolph II, House of Habsburg Gold medal 1599 - 5 Ducats / Dukaten Commemorating Reichstag in Regensburg For coronation medal, only dies from 1576 are known. Minted later, on the occasion of the Reichstag in Regensburg Extremely rare! Only 2 Known Piece with this weight. The other piece was sold for 10.000 EUR at Kölner Auction 112 – Lot 753 in weaker condition. Slg. Horsky 1207; Slg. Montenuovo 666. 29,78 mm; 17,39 g. Extremely Fine