Oil on light cardboard, laid on hard fibre board Keller 1964/13. Monogrammed lower right. Signed and inscribed "N° 64/M 7" on verso, inscribed "z" by a hand other than that of the artist. Inscribed "oben" on verso of frame. 50 x 64,5 cm (19,6 x 25,3 in) Presumably with orig. artist's frame . [SM].