French School, 18th Century. Two miniatures on ivory

FRENCH SCHOOL circa 1795
Portrait de jeune homme en habit bleu (Portrait of Young Man in Blue Attire)
Gouache on ivory
Height : 4,5 cm (1-3/4 in.) - Width : 3,5 cm (1-1/3 in.).
Flaking and losses

ROBERT (?)***
Portrait d’homme en habit bleu (Portrait of Man in Blue Attire)
Gouache on ivory expanded on sides
Diameter : 5,5 cm (2 in.).
Losses, crack

Provenance :