other then this wonderful paintings by american artist Fairfield Porter, here are his Sketchbooks
Fairfield Porter Under the Elms, 1971 - 1972 Oil on canvas 158.3 x 117.5 cm
Fairfield Porter Jane and Elizabeth, 1967Oil on canvas, 55 1/8 x 48 1/8 inches.
Fairfield Porter Amherst Campus Oil on canvas.
Lawn Scene 1953, Oil on canvas