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Lacloche Frères, an Art Deco diamond brooch, circa 1920
Lacloche Frères, an Art Deco diamond brooch, circa 1920, designed as a stylised openwork bow, millegrain-set with circular- and rose-cut diamonds, mounted in platinum, length 5.4cm, signed Lacloche Frères, numbered 64160, French assay mark for platinum and indistinct maker's mark