Cabin Altitude/Pressurization Selector Set (2 instruments) B-50 KC-97 C-7 one is a blue Acceptance

one is a blue Acceptance tag

The pointer is calibrated by turning the screw in the lower left corner

made by Marconi Espanola under license from the German instrument manufacturer Askania

See instruction page from the SCR-595 manual in the photo gallery

25in diameter and 4in deep

Cabin Altitude/Pressurization Selector Set (2 instruments) B-50 KC-97 C-7 one is a blue AcceptanceThis offer is for a vintage 1950s Cabin Altitude Pressurization Selector Set of 2 instruments: Cabin Altitude Pressurization Selector and the Pressurization Rate of Change Selector, made by Airesearch, which appeared on the engineers panels of the Boeing B 50 Bomber and KC 97 Stratotanker. See photos of the diagram and descriptive text from the B 50 Flight Manual. Both measure 3. 25in diameter and ~6in deep. The dial markings are clear and the glass