[National Library of Medicine staff gather on the front steps for this photograph which helped to mark the library's 175th anniversary] National Library of Medicine (U.S.) Anniversaries and Special Events Image caption on page 124 of the book US National Library of Medicine: "Celebrating 175 years of public service, 2011. Staff of the library gathered on its front steps for this photograph which helped to mark the library's 175th anniversary. Their predecessors stood in the same location twenty-five years earlier to mark the library's sesquicentennial. The library will mark its bicentennial in 2036." Produced: [2011] Photograph Still image 1 photograph : 21 x 26 cm color nlm:nlmuid-101707390-img 101707390 http://resource.nlm.nih.gov/101707390 OCLC: 990151008 English US National Library of Medicine The National Library of Medicine believes this item to be in the public domain. https://creativecommons.org/publicdomain/mark/1.0