Flight Computer, True Air Speed AC Type G-F OH-6 Cayuse but we have no way

but we have no way to authenticate the document

including bombers B-17

and is likely 1950-60's-vintage given its labeling

The tamper-evident wire and seal are still intact

This is a crash relic believed to be from a WWII Soviet Air Force Yakovlev Yak 7 recovered from its crash site in Poland

Flight Computer, True Air Speed AC Type G-F OH-6 Cayuse but we have no wayThis is a WWII era True Air Speed Computer used by US Army Air Force and Navy aircrew to determine true airspeed for navigation and bombing runs. The order number prefix 42 indicates the year 1942. Made of either stiff plastic and measuring ~8 inches diameter. In good condition given its age.