Louis XVI period box with miniature on its lid. France, late 18th century

Louis XVI period box with miniature on its lid. France, late 18th century.
Gouache on vellum.
Bronze box.
Signed.
Hinge with breakage.
Measures: 3 x 9,2 x 7,5 cm.
This small bronze box has a miniature on its lid. Of circular format, this miniature represents Leda and the swan.
The story of Leda and the swan comes from Greek mythology. Leda was the wife of Tindarus, king of Sparta. One day, while walking along the river Eurotas, after having sex with her husband Tindarus, Leda was seduced by Zeus, who appeared in the form of a swan, something he often did in order to have sex with women. From these relations, Leda bore four children, two by her mortal husband Tindarus and two by the god Zeus. This motif is rarely depicted, but is very common in Renaissance painting.