Rod brooch. Goldsmith-master workshop Christian Heyden, Cologne. The elongated snail shape ends in a drop-shaped tip with a granulated surface. Central oval faceted fire opal, above it brilliant, approx. 0.50 ct, each in a frame setting. 18 ct yellow gold, ca. 19 g, master mark "CH" on the back side, h=10 cm, w=2.2 cm.
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