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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
Plexiglas dome, navigation, U.S. Navy, 56 cm. dia., 15 cm. h.
3-D: 8.3 × 8.1 × 11.1cm (3 1/4 × 3 3/16 × 4 3/8 in.)
6-1/2in. high, 4-1/4in. wide, 3-1/2in. deep; eliptical face; black; ca.1920s.
3-D: 11.4 x 18.5cm, 3.7kg (4 1/2 x 7 5/16 in., 8 3/16lb.)
3-D: 9.4 × 11.4 × 9.5cm (3 11/16 × 4 1/2 × 3 3/4 in.)
3-D: 16.8 × 14 × 16.5cm (6 5/8 × 5 1/2 × 6 1/2 in.)
3-D (Without Eyepiece): 26.7 x 15.2 x 22.2cm (10 1/2 x 6 x 8 3/4 in.)
Storage: 16.67 x 50.8 x 13.97cm (6 9/16in. x 1ft 8in. x 5 1/2in.)
Approximate: 35.6 × 81.3cm (14 × 32 in.)
3-D: 60 × 6.5 × 6.5cm (23 5/8 × 2 9/16 × 2 9/16 in.)
3-D (Diameter x Length): 7.3 × 21cm (2 7/8 × 8 1/4 in.)