Original WWII U.S. Army Air Corps Type A-1 Astrograph with Star Charts and Manual in Transit Chest - dated 1942 Resin Guns and Grenades The crossguard has a typical

The crossguard has a typical Alcoso style open winged eagle which looks to the viewer's right

The Sleeve is manufactured of a cast-steel sleeve with four sheet-steel fins held into place with a locking nut

complete with one buckle and strap but missing the closure strap over the handle

The cast iron hilt shows the usual pattern of approximately 18 vertical grooves intersected by 6 horizontal grooves

Original WWII U.S. Army Air Corps Type A-1 Astrograph with Star Charts and Manual in Transit Chest - dated 1942 Resin Guns and Grenades The crossguard has a typicalOriginal Item: Only One Available. This is a very nice U. S. Army Air Corps Type A 1 Astrography, or Star Chart Projector, complete in its original transit case. These instruments were used in aircraft with a navigator crewman as an aid to determine the position and course of the aircraft during nighttime flying using celestial navigation. The black projector was installed above a map table at the navigators station at the height specified by the