Astro Compass, Mk II, Sperti, for Parts or Repair ME-109 This clock appeared in the

This clock appeared in the Soviet Fighters Polikarpov I-15Bi and I-16 (see photo from I-16 manual dated 1940)

PDF copies of the A-12 manuals can be provided if desired

According to our friends at DeutscheLuftwaffe:

Weston model 606

25 inches square and 5 inches deep

Astro Compass, Mk II, Sperti, for Parts or Repair ME-109 This clock appeared in theThis WWII era Astro Compass, Mk II, was used for celestial navigation and is being sold as is for parts or repair. The Astro Compass was used across many versions of US Army Air Force aircraft with navigator crew during the era, such as bombers B 17 Flying Fortress, B 24 Liberator, and B 29 Superfortress, and transports C 46 Commando, C 47 Dakota, and C 54 Skymaster. The compass would be placed in a fixed mount on top of the instrument panel or in the