Art & Project # FRANCESCO CLEMENTE # 800 cps, 1978, nm+
Art & Project # FRANCESCO CLEMENTE , invitation # 1979, mint--
Art & Project # GER van ELK , bulletin 33 # 1971, nm
Art & Project # GER VAN ELK, invitation # 1971, nm+
Art & Project # GER VAN ELK, WILLIAM LEAVITT, ALLEN RUPPERSBERG# invitation # 1974, mint
Art & Project # GILBERT & GEORGE # invitation, 1974, nm+++
Art & Project # GILBERT & GEORGE , invitation Videotapes, 1972, mint--
Art & Project # GILBERT & GEORGE , new works # invitation, 1971, nm+++
Art & Project # GILBERT & GEORGE, postrcard sculptures # 1980, handwritten, mint--
Art & Project # HAN SCHUIL # invitation, 1995, mint
Art & Project # HAN SCHUIL # invitation, Kunstrai, 1990, mint-
Art & Project # HAN SCHUIL, handwritten invitation by van Beijeren # 1993, mint
Art & Project # HANNE DARBOVEN # invitation, 1974, nm++
Art & Project # HANS BROEK # Kunstrai 1998, mint
Art & Project # INVITATION KUNSTRAI 94, Verkerk, Schuil ao# 1994, mint
Art & Project # JAAP BERGHUIS, invitation # 1976 nm++
Art & Project # JAAP BERGHUIS, invitation # 1977, mint--
Art & Project # JAN COMMANDEUR # invitation, 1982, mint--
Art & Project # JAN COMMANDEUR, invitation # 1980, mint
Art & Project # Jan COMMANDEUR, invitation # 1985, mint-
