postkartenformat, ca. 10,5 x 15 cm. postkarte zur installation der arbeit 'secant', 100 fir timbers, 12'' x 12'' x 300' overall, at the nassau county center for the fine arts, from may - july 1977, herausgegeben von der sperone wastwater fischer gallery. photo: gianfranco gorgoni. tadelloses exemplar/ mint copy.