Altimeter, Civilian Cessna Czech By rotating this lens to

By rotating this lens to align North with the compass pointer below

The information received by the altimeter has been corrected by the computer for static system error

The rigid shell with reinforcing ridges

The A-5 Automatic Pilot was used primarily in WWII-era bomber aircraft of the Air Corps US Army such as the Consolidated B-24 Liberator (see photo showing the location of the panel in the B-24 cockpit)

In this specimen

Altimeter, Civilian Cessna Czech By rotating this lens toThis is a civilian altimeter marked for use in a Cessna aircraft. It is date stamped November 1959. The knob is used to adjust the altimeter to the barometric pressure is displayed in the small window at the 3 o'clock position. The glass and case are intact, and the knob rotates, and the pointers move. Measures 3. 25 inches diameter and ~4 inches deep.