Original U.S. WWII 8th Air Force Confidential Tactical Development Book August 1942 - May 1945 Russian Maxim 1910 with just a bit of

with just a bit of fouling and oxidation present

the second style has a higher and overall smaller embossing with a snap stamped U

A coincidence rangefinder or coincidence telemeter is a type of rangefinder that uses mechanical and optical principles to allow an operator to determine the distance to a visible object

This is particularly evident on the interior skirt and on the exterior rear "dome"

Original U.S. WWII 8th Air Force Confidential Tactical Development Book August 1942 - May 1945 Russian Maxim 1910 with just a bit ofOriginal Item. Only One Available. In a directive dated 26 November 1944, Lieutenant General James H. Doolittle, then Commanding General, Eighth Air Force, requested a report of the development of the Eighth Air Force for the Commanding General, Army Air Forces and to be used as a background for tactical study by the Air Force Tactical School. This report, "Eighth Air Force Tactical Development August 1942 May 1945" was prepared under the direction of