Austria Holy Roman Empire (800/962 - 1806), Sigismund, Archduke of Austria (1439-1490) 1/2 Guldiner 1484 Hall crowned, draped and armored bust / armored knight on horse. on of the earliest coins displaying a date in arabic numerals.The first great silver coin minted in Hall and of a great numismatic importance. Ag. MT 60 var. 15.87 g. SS