Sperry Marine Gyro-Compass and Gyro-Pilot Manual 1944 Regia Aeronautica likely indicating negative or positive

likely indicating negative or positive draw

General Railway Signal was contracted to build this sighting station

Measures 10" long including the handle

This is an excellent specimen of the Contact Altimeter (Kontakt-Hohenmesser) Fl

Sperry Marine Gyro-Compass and Gyro-Pilot Manual 1944 Regia Aeronautica likely indicating negative or positiveThis 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.