λ Karl-August Schreinzer (1819-1897), a portrait miniature

λ Karl-August Schreinzer (1819-1897), a portrait miniature, gold and diamond bracelet, mid 19th century, the clasp set with an oval miniature on ivory reputedly depicting the engineer Charles Baird (1766-1843), within a border of cushion-shaped diamonds, to a bracelet composed of gold cylindrical links engraved to the front with Rococo-style scroll work, bracelet length 18.3cm, portrait miniature 4.2 x 3.2cm excluding frame, fitted case, portrait miniature signed Schreinzer