A very rare item in such good state of preservation.
Nearly gearless details, few background cuts. Well-preserved mint luster.
Obverse: bust to the left, in the rim legend:
MARIA LUIGIA PRINC.IMP.ARCID.D'AUSTRIA 1815;
Reverse: in the linear rim a crowned shield of arms, in the outer rim a legend punctuated by the denomination 40 LIRE:
PER LA GR.DI DIO DUCH-DI PARMA PIAC-E GUAST-;
Gold, weight 12.89 g.