This small ribbed gold ruby cup has a silver mount by silversmith Elias Adam of Augsburg. Please see image 4 of 4 in this Christie's listing to compare the marks to my piece - https://onlineonly.christies.com/s/collector-online/german-silver-gilt-mounted-ruby-glass-casting-bottle-114/118053  height: 4.44 cm (1.75 inches) top diameter not including the handles: 5.71 cm (2.25 inches). Fine condition.