1. Letters Creator: From the Collection: Filippov, Boris, 1905-1991 Published / Created: 1952-63 Call Number: GEN MSS 334 Container / Volume: Box 7, folder 218-231 Image Count: 24 Found in: Beinecke Rare Book and Manuscript Library > Boris Filippov papers (GEN MSS 334) > 1969 Acquisition > Correspondence > Struve, Gleb > Letters