Claudia, I don't know how much help we can be at New York Public Library for the Performing Arts at Lincoln Center, but if you want to contact me perhaps I can give you some information. NYPL really doesn't keep much of the three-dimensional materials you are describing. We have extensive holdings of archival collections and other non-book ephemeral materials. NYPL at Lincoln Center is divided into 4 research divisions--Theatre, Music, Dance and Recorded Sound and a circulating collection. We do have a museum program which utilizes our collection materials in the exhibitions. However, most 3 dimensional materials used are borrowed from outside sources. Feel free to contact me: Mary Ellen Rogan, Archivist Billy Rose Theatre Collection New York Public Library for the Performing Arts [log in to unmask] 212-870-1778