CC0 · no rights reserved
Detector, Hydrogen Leak, Airship
From the collection of National Air and Space Museum. Free to download, adapt and use — no permission needed.
About this work
10cm wide, 3cm deep; white dial with black markings; 1921.
National Air and Space Museum’s own descriptionSubjects
Credit lineDetector, Hydrogen Leak, Airship. J. Davis & Son Ltd.. National Air and Space Museum, Transferred from the Department of Commerce. CC0.
