拍品 66
66
An astro-spectroscope, in leather case by John Browning, 4¾ins. (12.1cm.) wide; a pocket spectroscope, signed John Browning 63 Strand London; another pocket spectroscope, unsigned, in case - 5¼ins. (13.3cm.) long; and a double optical system spectroscope signed John Browning London, - 9ins. (22.8cm.) long. (3)

細節
An astro-spectroscope, in leather case by John Browning, 4¾ins. (12.1cm.) wide; a pocket spectroscope, signed John Browning 63 Strand London; another pocket spectroscope, unsigned, in case - 5¼ins. (13.3cm.) long; and a double optical system spectroscope signed John Browning London, - 9ins. (22.8cm.) long. (3)