Autopilot Control Panel for C-1 Autopilot System Liaison Aircraft This is a dual Oil

This is a dual Oil Pressure indicator as used to measure oil pressure in the left and right hand supercharger sumps in the US Air Force C-121 transport version of the Lockheed Constellation

Air speed from 0-200 MPH is indicated by a clockwise-rotating pointer

The metal seal is in place in the lower right of the case

was the premier heading reference system for high-latitude flying in North America throughout the early nineteen fifties

Autopilot Control Panel for C-1 Autopilot System Liaison Aircraft This is a dual OilThe C 1 Autopilot system was used extensively in WWII era bomber aircraft of the US Army Air Forces, including the Boeing B 17 Flying Fortress, the Consolidated B 24 Liberator, and the Boeing B 29 Superfortress. This module, one of 10 modules in the system, is the control panel, typically installed at the pedestal between the pilot and co pilot. The other modules are three servo units (aileron, rudder, elevator), a directional stabilizer, the vertical