In 1989, pieces by the Rita and Taft Schreiber collection were donated to the museum, encompassing 18 paintings, sculptures, and drawings by Jackson Pollock, Piet Mondrian, and Arshile Gorky, among others.[8] Hollywood agent Phil Gersh and his wife Beatrice, both founding members, gave 13 important pieces from their collection to the museum the same year, including Pollock's early drip painting Number 3, 1948 and David Smith's 8-foot-tall stainless steel sculpture Cubi III (1961) — as well as works by artists such as Ed Ruscha, Cindy Sherman, and Susan Rothenberg.[9] Finally, the museum's co-founder Marcia Simon Weisman bequeathed 83 works on paper from artists including Willem de Kooning, Barnett Newman, Jasper Johns and California-based painters Richard Diebenkorn and Sam Francis.[10] In 1991, Hollywood screenwriter Scott Spiegel donated works by Jean-Michel Basquiat, Mark Innerst, Robert Longo, Susan Rothenberg, David Salle, among others.