"No restrictions on access"@en . . "folder\n\n1"@en . "United States Holocaust Memorial Museum"@en . . . "irn614446" . "Contains eight photographs, many with English descriptions on the verso, of the Ohrdruf concentration camp shortly after liberation. Taken by the donor's father, Ralph C. Baas, a U.S. serviceman who drove a tank destroyer through France, Belgium, and Germany."@en . . . . . "Ralph C. Baas photograph collection"@en . .