Attributed to Pierre CONROUX (1923-2003) Set of three gouache drawings on tracing paper featuring three white gold or platinum brooches with motifs of three variations of a bouquet of flowers, tied with ribbons, paved with calibrated and brilliant-cut baguette-cut diamonds, and formed with faceted oval rubies. Circa 1950-60. Dimensions: 16.3 x 12.7 cm, 14 x 11.7 cm and 13.6 x 10 cm. Annotations.