Cabin Altitude/Pressurization Selector Set (2 instruments) B-50 KC-97

Cabin Altitude/Pressurization Selector Set (2 instruments) B-50 KC-97

$39.50
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This 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 and case are intact. See photos.  

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