Body made of blackened brass and various artificial materials. Various scale divisions, for direction, latitude, local hour angle, sidereal hour angle, declination and bearing. Cross bubble levels on platform. Paper instruction for setting the instrument stuck in the lid. With printed instruction pamphlet published by Sperti titled Instructions for the use of the Astro Compass MK.II (See file). Fitted wooden carrying case, cotton carrying strap.
Материал
Signed on a label on the main body: Sperti, Inc., Cincinnati, Ohio | U.S.A. Marked on the same label: Astro-Compass MK II | Manufacturer's Assembly Part No D.500 | Contract No. W 535-AC36492 [this text is also found on a larger label on the left side of the box, also stamped: AN | E453]
