Japanese Operational Aircraft "Know your Enemy!" CINCPAC Bulletin July 1945 Wellington This compass has a plaque

This compass has a plaque noting its use in the PBY Catalina

It was a late war innovation that used the aircraft altitude and speed with the direct correlation of where the weapon was pointed to calculate the reticle

published in 1940 by the British Royal Air Force Air Ministry

and knurls/ribs for finger placement

Each aircraft is depicted on the front and back of a page

Japanese Operational Aircraft "Know your Enemy!" CINCPAC Bulletin July 1945 Wellington This compass has a plaqueHere is a very interesting document, produced by the office of the Commander in Chief PACific (CINCPAC) to inform personnel of informational and photographic updates of Japanese aircraft in the Pacific theater, published July 1945. It includes confidential information known at the time of the Buka Kamikaze aircraft. In addition, many of the aircraft in the photos were captured and then marked with US roundels to hopefully prevent them from being shot