Public domain
LANGLEY FIELD, VA. CURTIS JN4D PLANE, WITH USUAL PROPELLER AND ACKERMAN WHEELS
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineLANGLEY FIELD, VA. CURTIS JN4D PLANE, WITH USUAL PROPELLER AND ACKERMAN WHEELS. 1917-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.