Study for Amorpha, Warm Chromatic and for Fugue in two colors; Study for The Fugue by František Kupka, 1910,Guggenheim Museum
The Solomon R. Guggenheim Foundation Peggy Guggenheim Collection, Venice, 1976 © 2016 Artists Rights Society (ARS), New York/ADAGP, Paris
Medium: Pastel on machine-made laid-line paper
https://www.guggenheim.org/artwork/2385