Obverse: The Virgin (Madonna) with child stepped on crescent, flanked by mint initials (K-B).
Reverse: Coat-of-arms within inner circle. Legend with titles of Emperor Ferdinand I and date in legend around.
Ferdinand I, Holy Roman Emperor (Alcalá de Henares (near Madrid), Kingdom of Castile (now Spain), 10 March 1503 – Prague, Bohemia (now Czech Republic), 25 July 1564) was a Central European monarch from the House of Habsburg. His titles from birth were Archduke of Austria, from his father, and Infante of Castile, León, Aragon and Navarre from his mother.