An art deco agate, tortoiseshell and diamond cigarette holder, by Cartier

An art deco agate, tortoiseshell and diamond cigarette holder, by Cartier
The agate trumpet with platinum and rose-cut diamond bands at the tip and centre, to a tortoiseshell stem, circa 1925, 15.0 cm long, maker's fitted case
Signed Cartier, Made in France, No. 03486