細節
A late 18th-Century folding guinea scale,
by Wetherell and Janaway No. 14 Cheapside, the beam with folding poise and engraved scale, the inner surfaces of the brass case with maker's and supplier's label -- 5¼in. (13.3cm.) wide
by Wetherell and Janaway No. 14 Cheapside, the beam with folding poise and engraved scale, the inner surfaces of the brass case with maker's and supplier's label -- 5¼in. (13.3cm.) wide