Jewellery, Watches and Objects of Vertu to include the personal archive of Louis Osman, goldsmith and architect

A Russian late 19th century silver filigree miniature casket, with applied flowerhead detail to the lid, and beaded terminals, maker’s mark for Michael Andreyev, Moscow, 1873, 84 zolotniks fineness, length 6.8cm x 4.3cm. £300-400