Obverse
Bust of Empress Maria Theresia of Habsburg facing right, wearing veil, tiara, and pearl brooch.
Reverse
Coat of arms of Maria Theresia on double-crowned shield divided into four fields representing Hungary, Bohemia, Burgundy, and Burgau (Günzburg); crowned inner shield with coat of arms of Austria; supported by crowned and nimbate double-headed eagle.
Comments
The Maria Theresa Thaler follows the Conventionsthaler standard of 1750, with a gross weight of one-tenth of a Vienna mark of silver, 5/6 fine. The fine silver content was of one-tenth of a Cologne mark (5 Vienna marks = 6 Cologne marks).
ASW: .7516 oz / 23.39 grams / 0.1 Cologne mark / 0.833 Vienna marks.
The Maria Theresa Thaler was originally struck in Austria between 1740 and 1780. It was the circulating currency of the Holy Roman Empire and its dominions and it was one of the most important trade coins in Europe and the world. Since the death of Maria Theresa in 1780, the coin has always been dated 1780. It has been continuously minted in various mints around the world: Birmingham, Bombay, Brussels, London, Paris, Rome, and Utrecht, in addition to the Habsburg mints in Günzburg, Hall, Karlsburg, Kremnica, Milan, Prague, and Vienna. It is estimated that until 2000, 389 million pieces were minted. As of 2019, it is still sold by the Vienna mint https://www.muenzeoesterreich.at/produkte/maria-