1. Philadelphia Museum of Art Creator: From the Collection: Gabo, Naum, 1890-1977 Published / Created: 1939-1980 Call Number: YCAL MSS 541 Container / Volume: Box 21 Image Count: 20 Found in: Beinecke Rare Book and Manuscript Library > Naum Gabo papers (YCAL MSS 541) > Series I: Correspondence > General Correspondence > Philadelphia Museum of Art
2. Richter, Hans Creator: From the Collection: Gabo, Naum, 1890-1977 Published / Created: 1939-1980 Call Number: YCAL MSS 541 Container / Volume: Box 23 Image Count: 43 Found in: Beinecke Rare Book and Manuscript Library > Naum Gabo papers (YCAL MSS 541) > Series I: Correspondence > General Correspondence > Richter, Hans
3. Sweeney, James Johnson Creator: From the Collection: Gabo, Naum, 1890-1977 Published / Created: 1939-1980 Call Number: YCAL MSS 541 Container / Volume: Box 25 Image Count: 17 Found in: Beinecke Rare Book and Manuscript Library > Naum Gabo papers (YCAL MSS 541) > Series I: Correspondence > General Correspondence > Sweeney, James Johnson