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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 - 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 - Car Zeiss, Jena
Nickel platted 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.