Public domain
CULVER, CLARENCE C. COL., U.S.A. IN CHARGE DEVELOPMENT OF RADIO IN AIRPLANES. CURTISS PLANE
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
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Credit lineCULVER, CLARENCE C. COL., U.S.A. IN CHARGE DEVELOPMENT OF RADIO IN AIRPLANES. CURTISS PLANE. 1918-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.