Item appears in the following exhibition page
Detail view of the ceiling in the Butler Library of Philosophy located in South Hall (Butler Library), ca. 1934.
Wurts Bros., N.Y.
Historical Photograph Collection;Box 162;Folder 7 (Buildings & Grounds - Morningside - Butler library, Album "The New Library building of Columbia University, Gift of Edward S. Harkness,1934")
Wurts Bros., N.Y., “Ceiling-Butler Library,” Columbia University Libraries Online Exhibitions, accessed March 24, 2018, https://exhibitions.library.columbia.edu/exhibits/show/butler75/item/531.