License, verbatimCC0
The Metropolitan Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged isPublicDomain=true in the museum's own record.
Andrew Joseph Russell. Woodchoppers' Huts in a Virginia Forest. On the Orange & Alexandria Railroad. Wood Supplied U.S.M.R. Railroads under Supervision of Major Brayton, June 1863. The Metropolitan Museum of Art.