BROCHURE Yellow gold, set with a cameo on agate depicting a profile of an elegant woman, in a double surround of black enamel (missing) and probably fine pearls (untested). 19th century. A natural pearl (not tested), black enamel and 18k gold brooch set with an agate cameo. 19th Century. RC : Traces of the hallmark : P, ? In a vertical rhombus. Dimensions: approx. 7 x 5.5 cm. Gross weight: 68.2 g (18k - 750).