Antique Enamel and Gold Cufflinks
14k gold double cufflinks with an opaque black enamel ground centered by a blue guilloché enamel quatrefoil.
By Riker Bros., Newark ca. 1900
Newark, NJ became the center of American jewelry production early in the nineteenth century. New Jersey native William Riker, the son of Dutch immigrants, became an apprentice at 15, later establishing his own firm in collaboration with various business partners. He later renamed the firm Riker & Sons when his three sons were old enough to join the business. In 1892 William and one son left the business, leaving the two remaining sons to rename the firm Riker Bros.