Marcel Duchamp, ‘Marcel Duchamp and John Cage:  "Reunion"’, 1968-1970, Alpha 137 Gallery
Marcel Duchamp, ‘Marcel Duchamp and John Cage:  "Reunion"’, 1968-1970, Alpha 137 Gallery
Marcel Duchamp, ‘Marcel Duchamp and John Cage:  "Reunion"’, 1968-1970, Alpha 137 Gallery
Marcel Duchamp, ‘Marcel Duchamp and John Cage:  "Reunion"’, 1968-1970, Alpha 137 Gallery
Marcel Duchamp, ‘Marcel Duchamp and John Cage:  "Reunion"’, 1968-1970, Alpha 137 Gallery
Marcel Duchamp, ‘Marcel Duchamp and John Cage:  "Reunion"’, 1968-1970, Alpha 137 Gallery