Portable Cave

1967

Medium: lithograph (aluminum and stone) in green, dark brown and blue on German Etching paper
Dimensions: image: 17.1 x 16.6 cm (6 3/4 x 6 9/16 in.) sheet: 28.5 x 25.4 cm (11 1/4 x 10 in.)
Genre: portfolio
Museum: National Gallery of Art