Sperry Marine Gyro-Compass and Gyro-Pilot Manual 1944 Regia Aeronautica General Railway Signal was contracted

General Railway Signal was contracted to build this sighting station

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

do not had a rear housing apparently by design

the need for the contactor disappeared and true IFF (Identification Friend or Foe) transponders took their place

The rubber boots over the triggers have deteriorated with age

Sperry Marine Gyro-Compass and Gyro-Pilot Manual 1944 Regia Aeronautica General Railway Signal was contractedThis 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.