31 CDVs, many with backmarks and/or inscriptions identifying the structure or scene. Subjects include: the US Capitol, the White House, the US Post Office, the US Patent Office, the Soldiers' Home, the US Treasury, Trinity Church, Lincoln's Summer Home, Arlington House, the US Botanic Garden Conservatory, Washington Monument, the Smithsonian, and others. Photographers include Alexander Gardner, Bell & Brother, Cross, Horton, G. D. Wakely, John Doldin & Co., and others.