Mug

Created in 1820–30 on Silver by John W. Forbes,"Mug" is an artpiece of Overall: 3 1/4 x 4 1/8 in. (8.3 x 10.5 cm); 4 oz. 4 dwt. (130 g)
Lip: Diam. 2 5/8 in. (6.7 cm)
Base: Diam. 2 11/16 in. (6.8 cm).

For more informations : http://www.metmuseum.org/art/collection/search/5339