Identification of German Aircraft/Luftwaffe, US War Dept, 1942, FM 30-35 JU-88 USN 33451 has been etched

USN 33451 has been etched on the back of the case

With the bearing target sighted through the "V" atop the glass prism

Compass Scale

and has the alternating munsell-green colored markings used across many USN instruments

Identification of German Aircraft/Luftwaffe, US War Dept, 1942, FM 30-35 JU-88 USN 33451 has been etchedThis is a Field Manual for the Identification of German Aircraft published for US Military Intelligence by the War Department in March 1942. It was clearly published in the rush to war in order to provide service personnel with the best information available at the time regarding the aircraft of their adversary. This 140 page manual describes and illustrates ~68 aircraft of the German Luftwaffe and Navy. The manual is in good condition. Pages 9 16 are