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Spectroscopes


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Spectroscope - unsigned
Lacquered brass tubes, glass prism, cast iron circular table (diameter 14.8 cm) on black painted cast iron tripod base (total height 22 cm). Collimating tube with adjustable slit. Small tube holding a graduated scale and collimating lens. Telescope tube with draw tube focusing.
Unsigned, but with the initials "UC" on the telescope tube. First half 20th century?






Spectroscope - Leybold
Lacquered brass tubes on black painted cast iron tripod base (total height: 30 cm). Collimating tube with adjustable slit; tube holding a graduated scale and collimating lens; adjustable telescope tube with rack and pinion focusing. Covered prism table with removable top.
Signed on top "E. Leybold's Nachfolger A.G. | Cöln - Rhein". First half 20th century?





Spectroscope - unsigned
Lacquered brass tubes, nickel plated brass circular table on black painted cast iron tripod base (total height 25 cm). Collimating tube with adjustable slit. Small tube holding a graduated scale and collimating lens. Adjustable telescope tube with draw tube focusing. Prism table with removable cover.
Unsigned, first half 20th century?





Hand spectroscope - R&J Beck
Lacquered brass Thorp's diffraction grating replica hand spectroscope (length 11.4 cm) and his cylindrical cardboard case.
Signed R&J. Beck LTD, ca 1930.







Hand spectroscope - R&J Beck
Lacquered brass hand spectroscope (length 10 cm) with adjusting wheel and brass screw-cap in its black leather covered hinged case lined with blue velvet and purple silk (11 cm x 6 cm).
Signed “R and J. BECK. LTD | London”







Hand spectroscope - J.A. Hilger
Zapon lacquered brass pocket direct vision spectroscope in its plush-lined leather-covered case (16 cm x 6 cm), with adjusting wheel and brass screw-cap.
Signed "J.A. Hilger | London", after 1892 (after 1892 the country of origin was stated).







Hand spectroscope - Huet, Paris
Nickel plated brass and oxidized brass wavelength direct-vision hand spectroscope (length 9.5 cm, accessory tube 5.5 cm) and its blue plush-lined leather-covered case.
Signed "Huet | Paris | 28634", ca 1930.







Hand spectroscope - Carl Zeiss, Jena
Nickel plated brass and oxidized brass hand spectroscope (length 10 cm) and its dark blue plush-lined leather-covered case.
Signed "Carl Zeiss | Jena | Nr 21200", ca 1930.







Hand spectroscope - Carl Zeiss, Jena
Nickel plated brass and oxidized brass hand spectroscope (length 10 cm) and its red plush-lined leather-covered case. The screwdriver is missing
Signed "Carl Zeiss | Jena | Nr 181136", ca 1950.







Hand spectroscope - Rayner multi-slit prism spectroscope - Gemmological Instruments Ltd
Nickel plated compact spectroscope in its plush-lined case. The outside slit (pocket spectroscope) and the inside slit (for microscope) are continuously variable. The slit is covered to prevent the entry from dust and the slit selection is achieved by turning the eyepiece, making the adjustment easily accessible when the spectroscope is inserted in the viewing tube of a microscope or in a stand.
ca. 1950-1955







Hand spectroscope - John Browning, London
Large straight-hand spectroscope (length 15 cm) made of ZAPON lacquered and blackened brass with an adjustable gap and 5 prisms; the arm is mounted on a side-mounted milled wheel and a lever connected to it. In its blue plush-lined leather covered case.
Signed “JOHN BROWNING | 63, STRAND LONDON”, and "GRACE'S SPECTROSCOPE” at the other side.







Hand spectroscope - John Browning, London
Grace’s-pattern hand spectroscope made of lacquered brass (length 10 cm) with adjustable prism via rack and pinion and turning wheel-operated draw-tube focusing in the original shaped and plush-lined leather-covered case (11 cm x 7 cm); the pale blue silk-lined lid with the gilt-tooled crest and maker's device for JOHN BROWNING.
Signed “JOHN BROWNING LTD | 138 STRAND | LONDON | 7745”, late 19th century.







Hand spectroscope - W. Watson & Sons, London
Lacquered brass hand spectroscope in its plush-lined case (11 cm x 6 cm); this model is similar to the brass spectroscope signed “John Browning” number 7745 described above.
Signed “D.V. SPECTROSCOPE MODEL 426 | W. Watson & Sons Ltd | London | 10864”