The Yale Papyrus Collection was held by the Yale University Library from 1899 to 1930, when it was moved to the Department of Classics. The collection was transferred from the Department of Classics to the Beinecke Rare Book and Manuscript Library gradually between 1964 and 1967. A group of items including wax tablets and mummy tags (P.CtYBR inv.4971-4985) was transferred from the Yale Peabody Museum of Natural History to the Beinecke Library in 1996., Acquired by gift and purchase, 1889-2005. Acquisition information is recorded in each individual description and on the Library’s Web site, here: https://beinecke.library.yale.edu/research-teaching/doing-research-beinecke/introduction-yale-papyrus-collection/guide-yale-papyrus#Acquisition, 1933 or 1935