b'World Series #2,World Series #4, 19701970 watercolour on paper, 30.5 x 22.5 in. (77.5 x 57.1 cm)watercolour on paper, 30.5 x 22.5 in. (77.5 x 57.1 cm) Signed, titled and dated recto Signed, titled and dated recto6'