formed of six ribbon-bow cartouches spaced with five scroll cartouches and four quatrefoil links, set with small rubies and diamonds in raised square collets, the members decorated with black enamel with white beads at intervals, all linked by later double chains with black and white enamel beads. 

The Jack and Belle Linsky Collection, sold Sotheby's New York, May 21, 1985, lot 133

The components of this necklace were originally assembled differently and were probably sewn onto a garment, rather than linked. The chains are 19th century. Some losses to enamel throughout.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

For a group of related jewelry, see Anna Somers Cocks and Charles Truman, The Thyssen-Bornemisza Collection, pp. 110-115, also incorporating various forms of filigree, stippled matting on the gold surfaces and a limited palette of opaque enamel.