Details
A spectrometer
in black enamelled brass with lacquered fittings on enamelled iron tripod base, silvered scale and vernier and adjustable prism turntable, in wood case -- 12½in. (32cm.) wide
in black enamelled brass with lacquered fittings on enamelled iron tripod base, silvered scale and vernier and adjustable prism turntable, in wood case -- 12½in. (32cm.) wide