Very stunning circular, sphere, round OB Ostby & Barton cufflinks in 10 karat yellow gold, with beautiful design detail, and dark, navy, cobalt blue enamel. They weigh 5.3 grams. Rare collectible piece, co-founder Ostby was a first-class passenger on the Titanic.
Each circle measures 9/16 inches diameter (a little more than 1/2 inch).
Art Deco 10K Gold Cufflinks with Cobalt Blue Enamel by Ostby & Barton