Autopilot Control Panel for A-5 Auto Pilot System, Sperry F-86 the pointer rotates clockwise indicating

the pointer rotates clockwise indicating altitude along the outer perimeter scale

Crudely measured altitude from 0-20

This stock number was used in the US Navy's Grumman F8F Bearcat fighter

It included a toggle in the center to test that the bulbs were good

Autopilot Control Panel for A-5 Auto Pilot System, Sperry F-86 the pointer rotates clockwise indicatingThe 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 of B 24 cockpit showing the location of the A 5 panel). The A 5 system appeared in aircraft manufactured during or before 1943, the year when the Honeywell C 1 system became the standard autopilot system for large multi engine aircraft. Theoretically, the A 5 system may also have appeared in the Boeing B 17