An early 19th-Century steel balance,

细节
An early 19th-Century steel balance,
with brass pans, by Richard Vandome & Co., with various weights, in mahogany case -- 9in. (23cm.) wide; and a Continental steel balance, with copper pans and part set of nesting weights, in fruitwood case -- 5in. (12.7cm.) wide

See Illustration (trade label)
(2)