the pamphlet, printed in black, with watercolour by Karel Appel, 1950, on wove paper, signed and dated in brush and blue paint by Karel Appel, signed in brown crayon by Constant, signed in pen and black ink by Aldo van Eyck, published by De experimentele groep Holland (Cobra), 1950, triplefolded, torn along the folds in places, few other tears, lightstained, otherwise in good condition
S. 470 x 627 mm.