S. B. Slijper (Blaricum, Netherlands)
1964, (Galerie Beyeler, Basel, Switzerland)
A. Gubbay (Geneva, Switzerland)
1970, (Crane Kalman Gallery, London, England)
Mrs. J. Coleridge (Oxfordshire, England)
(Donald Morris Gallery, Birmingham, Michigan, USA)
S. Senecoff (Bloomfield Hills, Michigan, USA)
1980, (Donald Morris Gallery, Birmingham, Michigan, USA)
Margaret H. Demant (Royal Oak, Michigan, USA)
1991-present, gift to the Detroit Institute of Arts (Detroit, Michigan, USA)