1 Thaler - Maria Theresia Vienna

Maria Theresia Thalers minted with actual Vienna dates — 1765, 1766, and 1767 — predate the restrike program that would eventually make this type one of the most reproduced coins in history. After Maria Theresia's death in 1780, the Austrian government recognized the coin's dominance in Levantine and East African trade and began striking restrike pieces perpetually dated 1780, a practice that continued well into the 20th century under multiple mints including Birmingham, Bombay, Brussels, London, Paris, Rome, and Utrecht.

The dated Vienna originals carry Her#417-422 varieties distinguishable by minor die differences. Collectors frequently misidentify restrikes as originals — the 1780 restrike reverse die was modified slightly, and edge lettering provides one of the more reliable points of differentiation.