拍品 151
151
A late 19th-Century lacquered brass Grace's Spectroscope,
A late 19th-Century lacquered brass Grace's Spectroscope,

細節
A late 19th-Century lacquered brass Grace's Spectroscope,
signed on the body-tube John Browning 63, Strand London and Grace's Spectroscope, with rack and pinion focusing, contained in the original blue plush-lined morroco case 6½in. (16.5cm.) long

See Colour Illustration