Medium: original lithograph. Printed in 1956 for the very rare Documenti d'Arte d'Oggi, published in Milan by Groupe Espace. Image size: 12 x 4 1/2 inches (300 x 115 mm). Sheet size: 12 1/2 x 8 5/8 inches (318 x 218 mm). There is printed text to the left of the image. Signed in the plate, not by hand.