Public domain
Wooden towers under construction near the Pan American Union Building, Constitution Avenue and 17th Street, N.W., Washington, D.C.
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineWooden towers under construction near the Pan American Union Building, Constitution Avenue and 17th Street, N.W., Washington, D.C.. 1920-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.