Timepiece (Stopwatch?), Japanese F4F Wildcat measured from full up at

measured from full up at 0 degrees to 40 degrees fully extended downward

which is then rotated to select the expected lighting condition when the targets will be encountered

many of the aircraft in the photos were captured and then marked with US roundels to hopefully prevent them from being shot down by friendly forces while undergoing flight tests

including heavy bombers B-17 Flying Fortress

officers and political workers of the Red Army-soldiers and officers of the Armed Forces of the Peoples Liberation Committee of the Rossin

Timepiece (Stopwatch?), Japanese F4F Wildcat measured from full up atHere is a highly unusual Japanese timepiece that is assumed to be military and WWII era. We speculate that it may have been either an aircraft navigator's timepiece or that of an artilleryman. The main dial measures time, assuming to be in seconds (since it does not run), with one rotation from 0 to 100. The bottom left dial is labeled with the Japanese character for "Hundreds", and the right dial is labeled with the Japanese character for