A very nice piece.
A rarer item in the trade.
Obverse: bust of the ruler to the right, legend in the rim:
M-THERESIA-D-G-R--IMP-GE-HU-BO-REG-;
Reverse: eagle with crowned five-field escutcheon on chest, below it denomination mark XVII, in the rim legend:
ARCHID-AUST-DVX--BVRG-CO-TYR-1762-X;