An Octagonal Cruet with Gallery D. Maria I, Queen of Portugal (1777-1816) 750/1000 silver frame gilt glass cruets Portuguese differences in cruets Lisbon assay mark (1822-1853), António Firmo da Costa maker's mark (1793-1843), remarked with "Cabeça de Velho" Dimensões (altura x comprimento x largura) - 29,5 cm; Peso - 826 g. Notes:  vd. ALMEIDA, Fernando Moitinho de - "Portuguese and Brazilian Silver Marks (15th C. to 1887)". Lisbon: IN-CM, 1995, L39 and L78; vd. VIDAL, Manuel Gonçalves; ALMEIDA, Fernando Moitinho de - "Portuguese Goldsmiths and Assay Marks (1887 to 1993)", vol. II. Lisbon: IN-CM, no. 4130.