A Stemmed Cup D. Maria I, Queen of Portugal (1777-1816) 750/1000 silver pierced decoration Portuguese missing of the liner, missing of the outer support and bruises on the base Oporto assay mark (1804-1810), António José da Mota maker's mark (1804-1843) Dimensões (altura x comprimento x largura) - 12 cm; Peso - 134 g.