[Process: Color-in-Color I, II (Stan VanDerBeek) / Sonia Landy Sheridan], c.1970, 1 sheet: photocopy on paper; 22 X 28 cm. Made by Sonia Landy Sheridan using the copier "Color-in-Color I" by 3M. Included in the file entitled "Procédé : Color-in-Color I, II = Process: Color-in-Color I, II." The Daniel Langlois Foundation for Art, Science, and Technology, Sonia Landy Sheridan fonds. 0501-145