On the reverse titled, signed and dated twice in black felt-tip pen: "WAY OUT" Pfahler 1963/62 1962/63. On the stretcher inscribed in black felt-tip pen: DOBERMANN
Sammlung Dobermann. Münster, Landesmuseum, 1973 (no ill.)
On the reverse titled, signed and dated twice in black felt-tip pen: "WAY OUT" Pfahler 1963/62 1962/63. On the stretcher inscribed in black felt-tip pen: DOBERMANN
Sammlung Dobermann. Münster, Landesmuseum, 1973 (no ill.)
