Early 19th Century Swiss Enamel Vinaigrette RingEarly 19th century enamel vinaigrette ring, in 18k gold. Enamel links attached the vinaigrette basket to the enamel ring. The backset is decorated with a translucent red enameled guilloch layered with decorative floral designs and a tiny set ruby. When opened the basket reveals a removable pierced cover with an intricately engraved floral motif. Swiss enamel work. Circa 1820. It was a common accessory with the elite classes of the time. A bit of