Original U.S. WWII Army Air Force A-12 Aircraft Bubble Sextant - Dated 1942 Russian Maxim 1910 USN and on the reverse:

USN and on the reverse:

The underside of the rim is stamped 233 / ZD

now totally outlawed as inhumane

The belt buckle is marked PAT

from 1 December 1939 to 1 March 1940

Original U.S. WWII Army Air Force A-12 Aircraft Bubble Sextant - Dated 1942 Russian Maxim 1910 USN and on the reverse:Original Item: Only One Available. This a a very rare navigational instrument used on American bombers and fighters during WWII. The data plate on the sextant itself reads: ARMY AIR FORCE SEXTANT BUBBLE TYPE A 12 SERIAL AC42 4688 ORDER NO W535AC27735 MFR'S DRAWING NO. 11734 LINK AVIATION DEVICES INCBINGHAMTON, N. Y., U. S. A. This is an excellent condition World War II sextant manufactured by the Link Aviation Co. It was used by the Military before