Categories prints SCHIPPERS, WIM T. WIM T. SCHIPPERS, Excelsior, 1968 Post author By admin Post date 30/01/1968 WIM T. Schippers, Excelsior, 1968 55,5 x 76 cm screen print signed, dated edition 20 sold By admin ....the real avant-garde is in the head. View Archive → ← JCJ VANDERHEYDEN, Untitled, 1968 [relief print] → HENRY FLYNT, Overthrow the human race!, 1968