1771 AS Austria Thaler, Maria Theresa, rare early type, not restrike as in 1780

1771 AS Austria Thaler, Maria Theresa, rare early type, not restrike as in 1780
Nice circulated old silver coin, see photos.
Maria Theresa Walburga Amalia Christina [1] ( German : Maria Theresia [maˈʀiːa teˈʀeːzi̯a] ; 13 May 1717 - 29 November 1780) was the only female ruler of the Habsburg dominions and the last of the House of Habsburg . She was the sovereign of Austria , Hungary , Croatia , Bohemia , Transylvania , Mantua , Milan , Lodomeria and Galicia , the Austrian Netherlands and Parma . By marriage, she was Duchess of Lorraine , Grand Duchess of Tuscany and Holy Roman Empress . [2]