A GERMAN ENAMEL SNUFF BOX, PROBABLY BERLIN, CIRCA 1755 the lid with a half length portrait of Frederick the Great after Antoine Pesne (1683-1757) flanked by part of a map of the Kingdom of Bohemia and Duchy of Silesia, the map continuing over the sides and base, the interior lid with a portrait of his wife Elisabeth Christine, Queen of Prussia, gilt metal reeded and scalloped rim mounts 8.2cm wide Provenance: The Hoffenreich Collection of Snuff Boxes, Vienna