AN UNUSUAL CAUCASIAN D.B. MIQUELET-LOCK GUN with twist barrels secured by an original engraved and nielloed white-metal band and a later plain band, decorated with engraved gold-damascened arabesques at the muzzles and breeches (damascening worn), and with gold-damascened scrollwork along the length of the rib, gold-damascened tang-plate, plain locks, one with brass-lined maker's mark, figured Circassian walnut full stock (wormed, fore-stock repaired) sparsely inlaid with iron nails and small ivory panels engraved with circles filled with red pigment, the butt with engraved silver band and ivory butt-plate, gold-damascened trigger-plate, button triggers, and engraved bone fore-end cap (incomplete, ramrod missing), 19th Century