**AN ART DECO CHALCEDONY, CORAL AND NEPHRITE DESK CLOCK, BY BLACK, STARR & FROST
Of mechanical movement, the cream oval dial with black Arabic numerals and 18k gold hands, within a carved onyx frame, the domed top set with an oval nephrite plaque, enhanced by sterling silver bands and cabochon coral detail, to the rectangular nephrite base, mounted in 18k gold and sterling silver, circa 1930, (accompanied by a winding key), 4 1/8 x 3 1/8 x 1½ ins., with maker's marks and French assay mark, in a Black, Starr & Frost brown leather fitted case
Dial signed Black, Starr & Frost, New York, Paris
**AN ART DECO CHALCEDONY, CORAL AND NEPHRITE DESK CLOCK, BY BLACK, STARR & FROST
Of mechanical movement, the cream oval dial with black Arabic numerals and 18k gold hands, within a carved onyx frame, the domed top set with an oval nephrite plaque, enhanced by sterling silver bands and cabochon coral detail, to the rectangular nephrite base, mounted in 18k gold and sterling silver, circa 1930, (accompanied by a winding key), 4 1/8 x 3 1/8 x 1½ ins., with maker's marks and French assay mark, in a Black, Starr & Frost brown leather fitted case
Dial signed Black, Starr & Frost, New York, Paris