SAPPHIRE AND DIAMOND 'COULISSANT' BANGLE, RENÉ BOIVIN
Circular-cut sapphires and diamonds, silver and gold (French marks), sliding silver panels sliding, circa 1975, inner circumference 15.5 cm, signed R. Boivin, brown René Boivin case
Cailles & Salit, 2019, letter of authenticity
SAPPHIRE AND DIAMOND 'COULISSANT' BANGLE, RENÉ BOIVIN
Circular-cut sapphires and diamonds, silver and gold (French marks), sliding silver panels sliding, circa 1975, inner circumference 15.5 cm, signed R. Boivin, brown René Boivin case
Cailles & Salit, 2019, letter of authenticity