Japanese Navy Handbook of Hand Signals JU-88 indicating vertical speed up to

indicating vertical speed up to 6

the 6A/1581 appeared in the DeHavilland Mosquito

which would have the ground map of the terrain below

judging from its design

The system was designed primarily to be used as a navigational instrument (see photos of system)

Japanese Navy Handbook of Hand Signals JU-88 indicating vertical speed up toThis is an authentic Hand Signaling handbook of the Japanese Navy. Each page contains 1 3 specific Japanese sailor hand signal illustrations and their meaning in Japanese text. Unfortunately we are unable to translate this manual and cannot provide any additional information regarding its content. The cloth covered paper cover is loose from its binding and is worn. All of the pages are present. There are only very few pencil markings on pages,