This Clyfford Still Abstract Expressionist offset lithograph print poster PH - 401 , 1957 is a very special and unique piece to add to your collection. The offset lithograph print poster is printed by The Clyfford Still Museum. It features an original artwork created by Clyfford Still ( 1904 - 1980 ) titled PH - 401 from 1957. Still was among the first generation of Abstract Expressionists who developed a new powerful approach to painting immediately following WWII. His contemporaries included Franz Kline, Willem De Kooning, Robert Motherwell, Jackson Pollock, and Mark Rothko. Described by many as the most anti - traditional of the Abstract Expressionists. The work is credited with laying the groundwork for the movement. The offset lithograph print poster measures 36 W X 24 H. It is in excellent " like new " condition with light signs of handling. It has never been framed, and is now being offered here for an excellent price.