641 - A pair of diamond earrings

A pair of diamond earrings Gold, fineness .800, and silver, fineness .833 Set with rose-cut diamonds and 10 old brilliant-cut diamonds weighing approximately 0.20 ct. Lisbon hallmark (1887-1937), goldsmith's mark of José Maria Cardoso (1919-1973) With case H.: 5.5 cm 20 g VIDAL, Manuel Gonçalves; ALMEIDA, Fernando Moitinho de – Marcas de Contrastes e Ourives Portugueses (1887 a 1993). Vol. II. Lisbon: IN-CM, 1996, nos. 17, 83 and 573