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Astrocompass, Mark II, "Excalibur III"

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This object is on display in the Time and Navigation exhibition at the National Mall building.


Gift of Maureen O'Hara Blair

Manufacturer: W. W. Boes Co.

Country of Origin: United States of America

Dimensions: Approximate: 10.8 x 21cm (4 1/4 x 8 1/4 in.)

Materials: Aluminum, Radium 226

Physical Description:Aluminum with black enamel finish. Approx. 4" dia. x 12" high. Used in polar navigation. Nameplate on the base reads "ASTRO-COMPASS MK II / The W.W. BOES CO. / DAYTON, OHOIO, USA

Inventory number: A19530088001

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