Rare thaler of Ferdinand I of Habsburg, minted at the mint in Jáchymov (Joachimsthal) in 1551.
Surface bears signs of secondary alterations.
Obverse: half-length portrait of the king facing right, on the sides the date 15-51, in his left hand he holds an orb of reign, in his right hand a sceptre, below in the rim a coat of arms with the Czech Lion
FERDINAND DG RO BOEMIE HVNG & RE
Reverse: single-headed Eagle with a five-field coat of arms on its chest
INFANS HISPANIAR ARCHIDVX AVSTR
Diameter 40 mm, weight 28.51 g