Lot 292 , A late 19th century lacquered brass spectroscope, in three sections , by John Brown, 63, Strand, London, mahogany cased; 19 x 13.5 x 7cm

A late 19th century lacquered brass spectroscope, in three sections , by John Brown, 63, Strand, London, mahogany cased; 19 x 13.5 x 7cm

A late 19th century lacquered brass spectroscope, in three sections , by John Brown, 63, Strand, London, mahogany cased; 19 x 13.5 x 7cm
£80-120