Browse Items (70 total)

Bubble sextant
Wood, metal alloy, plastic

Marked property Air Force-US Navy, type A-10A. Probably WW II era. Blackened aluminum casting, containing clockwork, lenses, mirrors, buddle level, and rubber eyecup. In fitted wooden box. A small rugged aircraft…

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Large Haines Sidereal clock, 8-inch dial
Aluminum, brass, glass

There are two sidereal clocks, both are electric. The first is 9 ½-inch diameter with a 8-inch dial, black metal base, brass and glass, 3 hands.

The second smaller clock 5 ¼-inch diameter, tag indicates a date of…

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 Celestial Globe by Denoyer-Geppert Company
Paper, metal stand
16-inch Celestial Globe by Denoyer-Geppert Company, Chicago, circa 1956. Blue sky with black and yellow stars, constellation borders, lines, and figures included.

Also a 16-inch celestial globe by George F. Cram's,…

DSCN0208.JPG
Metal, glass

Measures 8 ¼ x 6 x 11 ½ inches, lens is 1.7” in diameter.
Director G.W. Myers articulated the need for a Meridian or mire Mark in a March 6, 1897 letter to university President Draper. “Mire mark and Collimator for 3-inch Combined…

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Sperti compass
There are three Astro Compass Mark II, in green wooden boxes with canvas handles. It can be pointed at a known star, including the sun, and used to indicate true north. Manual included.

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Conical log-spiral antenna
Wood, metal

Base is 8-inch in diameter and it is 19 ½ inches long.

Design of the array element was done by Professor John D. Dyson. Installed on the Vermilion River Radio Observatory's 400 x 600 foot cylindrical radio observatory, in operation…

DSCN0189.JPG
Wood, metal, glass

Weston DC voltmeter model #38635, dated September 1, 1923. Two scales 0-15 and 0-150. Box measures 7 ½ x 4 ½ x 7 ½ inches. Scale has mirrored scale.

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DSCN0018.JPG
Wood, metal, paper, glass

Model 45, No. 32664, in oak box measuring 7 7/8 x 5 3/8 x 7 7/8 inches, with leather handle, 2 scales 0-150, 0-15. Paper label dated November 5, 1926. All hardware is nickel-plated brass. The front panel and meter face…

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DSCN0067.JPG
Wood, metal, glass

Fitted keystone wood box with hinged lid and two hook latches. Black metal frame with brass screws, silver scale and wood handle. Includes 3 black painted telescopes, 1 eyepiece cover, 8-½ inch radius, eyepiece to read vernier,…

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Warner & Swasey drum chronograph
Metal, wood, glass

The chronograph, made by Warner and Swasey, is permanently mounted in the clock room. Includes wooden box (9 ¼ x 6 ¼ x 50 ¾ inches) connected to counter-weights and pulleys attached to the ceiling. It consists of a brass…
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