A Pair of Bowls - Swans 833/1000 silver hammered and chiselled decoration Portuguese Oporto Águia mark (1938-1984), José Martins de Oliveira e Costa maker's mark (1932-1945), PEDRO BATISTA mark - OPORTO Dimensões (altura x comprimento x largura) - 12,5 x 9 x 11 cm; Peso - 565 g. Notes: Vd. VIDAL, Manuel Gonçalves; ALMEIDA, Fernando Moitinho de - "Portuguese Goldsmiths and Assay Marks (1887 to 1993)", vol. II. Lisbon: IN-CM, no. 49 and 2557.