Public domain
McClellan's Headquarters (1861-62), 17th & I St., S.W., Washington, D.C.
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Subjects
Credit lineMcClellan's Headquarters (1861-62), 17th & I St., S.W., Washington, D.C.. 1918-01-01. National Photo Company Collection, Library of Congress. Public domain.