A Vase crystal from Orrefors Manufatory silver ring, Lisbon Águia mark (1938-1984), unreadable maker's mark, LEITÃO & IRMÃO mark, Sweden 20th C. Dimensões (altura x comprimento x largura) - 18,5 cm Notes: Vd. VIDAL, Manuel Gonçalves; ALMEIDA, Fernando Moitinho de - "Portuguese Goldsmiths and Assay Marks (1887 to 1993)", vol. II. Lisbon: IN-CM, no. 64.