Lot 4. Onyx, enamel and diamond vanity case, Lacloche Frères, 1920s. Estimate 6,000 — 8,000 GBP. Unsold. Photo: Sotheby's.

The rectangular black enamel case applied to the front with a line of millegrain-set rose diamonds framing a similarly set circular plaque, opening to reveal a mirror, powder compartment and lipstick holder, to a chain decorated with black enamel and onyx beads, measuring approximately 75 x 45 x 10mm, signed Lacloche Frères, numbered, French assay and maker's marks. 

Sotheby's. Fine Jewels Londres, 15 mars 2016