Sperry Marine Gyro-Compass and Gyro-Pilot Manual 1944 Regia Aeronautica do not had a rear

do not had a rear housing apparently by design

General Railway Signal was contracted to build this sighting station

Here is an original WWII-era 31-page booklet on the Fundamentals of Air Fighting

Handley Page Halifax

all for the elimination of errors caused by magnetism

Sperry Marine Gyro-Compass and Gyro-Pilot Manual 1944 Regia Aeronautica do not had a rearThis is an original hard copy manual for the Sperry Gyro Compass and Gyro Pilot system used in sea vessels during the 1940's and 1950's. The ~60 page manual describes the operation and maintenance of the system. It is full of text, illustrations, and diagrams. It was published in 1944, and is in very good condition.