來源
Anonymous sale, Ketterer Kunst, Munich, 24 May 1977, lot 1592.
Anonymous sale, Christie's, New York, 8 October 1987, lot 51.
Anonymous sale, Hôtel Drouot, Paris, 13 December 1989, lot 178.
Galerie Salis, Salzburg.
Acquired from the above by the present owner in December 1989.