λA George III tortoiseshell and gold mounted portrait snuff box

λA George III tortoiseshell and gold mounted portrait snuff box,

unmarked, the miniature possibly by the school of Christian Ritcher (1678-1732),

circular form, basket-weave decoration, gold thumb-piece and hinge, the inside of the hinged cover set with a portrait miniature of a young lady in a blue dress with a lace collar, gilt surround, diameter 6.3cm.