24. "Sinfonia En Negro" ink drawing (9" x 7 1/2"), 1975 January

24. "Sinfonia En Negro" ink drawing (9" x 7 1/2"), 1975 January, Box: 6, Folder: 21. Manuel (Chaca) Ramírez Photographs, 22870067. Benson Latin American Collection, The University of Texas at Austin. https://archives.lib.utexas.edu/repositories/4/archival_objects/362888 Accessed September 26, 2026.