Joseph Beuys - Invitation card 'Enterprise', New York, 1974. Invitation card from John Gibson Gallery Inc, New York, January 1974. Signed by Joseph Beuys in red felt-tip pen. The whole Beuys family, Joseph and Eva, their son Wenzel and daughter Jessyka watching the Enterprise series on 18/11. 1972 at 6 p.m. Ref: Neuhaus, p.158 fig. 331. Very good condition, 10 x 15 cm. Invitation card from John Gibson Gallery Inc, New York, January 1974. Signed by Joseph Beuys in red felt-tip pen. The entire Beuys family, Joseph and Eva, son Wenzel and daughter Jessyka while watching the Enterprise series on 11/18. 1972 at 6 p.m. Ref: Neuhaus, p.158 fig. 331. Very good condition, 10 x 15 cm.