AN ART DECO DIAMOND, BLACK ONYX AND ENAMEL MONEY CLIP, BY UDALL & BALLOU

AN ART DECO DIAMOND, BLACK ONYX AND ENAMEL MONEY CLIP, BY UDALL & BALLOU
Designed as a pavé-set diamond terrier, with black onyx eyes, ears and patches, and a green enamel collar, mounted in a platinum openwork frame, circa 1935, (inscribed on the reverse with "Merry Christmas, To Mother from Horace and Muriel, 1930")
Signed Udall & Ballou