A thaler (/ ˈ t ɑː l ər /; also taler, from German: Taler) is one of the large silver coins minted in the states and territories of the Holy Roman Empire and the Habsburg monarchy during the Early Modern period.A thaler size silver coin has a diameter of about 40 mm (1 + 1 ⁄ 2 in) and a weight of about 25 to 30 grams (roughly 1 ounce).The word is shortened from Joachimsthaler, the ...

The Maria Theresa thaler (MTT) is a silver bullion coin and a type of Conventionsthaler that has been used in world trade continuously since it was first minted in 1741. It is named after Maria Theresa who ruled Austria, Hungary, and Bohemia from 1740 to …