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…


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…


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,…

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…


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.


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…

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.


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…


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,…


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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