Download Image of Howard University, [Washington, D.C.]. Free for commercial use, no attribution required. Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.. Dated: 01.01.1910. Topics: district of columbia, washington dc, glass negatives, howard, university, howard university, united states history, workers, industrial history, library of congress