An exquisite mint piece.
The coin is very rare in such a state of preservation.
Obverse: in a laurel wreath the ruler's head to the right, below it the mint initial A, in the rim the legend:
FRANCISCVS I:D:G:-AVST:EMPEROR-;
Reverse: eagle of the Empire, in the rim legend:
HVN:BOH:GAL:REX-A:A:[20]LO:WI:ET IN FR:D:1814-;