A gold and guilloch enamel presentation Cigarette Case

A gold and guilloch enamel presentation Cigarette Case
by Ghan, unknown workmaster's initials C.B., St. Petersburg, circa 1890
Oblong of oval section, overall enamelled with translucent deep red over wavy sunburst on cover, the hinged cover applied with the double-headed eagle of the city of Moscow with the Imperial crown at the corners, with a gold-mounted rose-cut diamond thumbpiece, marked inside base and cover
3 in. (8.7 cm.) long