81. [Classes], holograph and typescript Creator: From the Collection: Dreier, Katherine S. (Katherine Sophie), 1877-1952 Published / Created: 1921-36 Call Number: YCAL MSS 101 Container / Volume: Box 51, folder 1461-1471 Image Count: 9 Found in: Beinecke Rare Book and Manuscript Library > Katherine S. Dreier papers / Société Anonyme archive (YCAL MSS 101) > Series II: Katherine S. Dreier: Writings > NOTES > [Pequeno, Pedro P.] > [Classes], holograph and typescript