Attitude Gyro Horizon Indicator, A4D-1 Skyhawk F-104 The center knob adjusts the

The center knob adjusts the indexing indicator for the view angle of the pilot

This manual is stamped on its inside title page NAS Guantanamo Bay CUBA

According to the Waltham website:

If it were a Nose angle indicator

and may have been installed aside others like it in a large multi-engine piston-powered aircraft

Attitude Gyro Horizon Indicator, A4D-1 Skyhawk F-104 The center knob adjusts theThis is a 1950 60's era Attitude Gyro Horizon Indicator as used in early versions of the US Navy Marine Corps Jet Fighter Attack Aircraft Douglas A4D 1 Skyhawk, made by Bendix to a Douglas spec (see data label). See diagram of A4D 1 instrument panel from its flight manual dated 1962. This indicator has a service label of Naval Air Station (NAS) Alameda CA dated 1967. The left knob adjusts the indexing 'aircraft' within the dial to align the