Black case and face with white luminous needles, numbers 0-9 with increment lines, markings "100 FEET, 1000 FEET, 10000 FEET, ALTITUDE"; barometric window with in/Hg in tenths, showing 29.6 and 29.7. Connector on rear. Created by Benjamin G. Sullivan Date Created 11/22/2022 Source Smithsonian National Air and Spa Keywords Aviation; Instruments Rights and Restrictions Not determined
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