MARK TOBEY (CENTERVILLE 1890 - BASILEA 1976) "Untitled" 1966 monotype and tempera on paper 44.5x32.5 cm. Signed and dated 66 lower right Provenance Philippe Daverio Gallery, New York Private collection, Milan This work is accompanied by a photo-certificate of authenticity issued by CMT Committee Mark Tobey, Münster, curated by Dr. Heiner Hachmeister