拍品 59
59
A rare brass 'candlestick' pattern postal scale signed R.W.WINFIELD BIRMINGHAM January 13 1840 No.170 with spring scale on moulded circular foot - 6¼in(15.8cm)high

细节
A rare brass 'candlestick' pattern postal scale signed R.W.WINFIELD BIRMINGHAM January 13 1840 No.170 with spring scale on moulded circular foot - 6¼in(15.8cm)high

拍品专文

Robert Walter Winfield registered the design on 13 January 1840 and it lasted for 25 years
C.f.G.L'E Turner Nineteenth Century Scientific Instruments p.62