Three French late 18th century lozenge-shaped ivory patch boxes

Three French late 18th century lozenge-shaped ivory patch boxes, one centered with a glazed gold-framed locket compartment containing hair and within a surround of a sunburst of rose-cut diamonds on blue enamel ground, with gold mounts and gold pellet border, diamond thumbpiece and internal mirror to the hinged cover, 9.5cm wide, together with a late 18th century lozenge-shaped ivory patch box, centered with an oval glazed locket compartment containing a horse with diamond collar and real hair mane and tail amongst foliage, blue enamel ground, glass bead and gold frame, gold pellet border and gold mounts, 9.3cm wide, a French 18th century ivory patch box, centered with a glazed locket compartment with seed pearl and glass bead foliate group and 'Souvenir', on blue enamel ground with similar shoulders, gold mounts and gold pellet borders, 9.3cm wide