Offset in colors
Butin 41. Signed, dated and numbered 23/150. One of the copies with a low proportion of red, as mentioned by Butin. On light machine-made laid board. 33,4 x 47,8 cm (13,1 x 18,8 in)Sheet: 45,2 x 59,7 cm (17,7 x 23,5 in).
After a photography of the Teide crater on Tenerife taken in 1969. Printed by F. W. Rhoden, Essen. Released as annual bonus by the Kunstverein für die Rheinlande und Westfalen, Düsseldorf 1971. [JS].