= David Nockels was a prolific contributor to magazines and books, specialising in nature, animals and the environment, i.a. the periodical 'World of Wonder' in the early 1970s, in the Netherlands published as "Kijk". Illustration to World of Wonder issue no. 205 (1974), p.10.

AND 11 other similar gouaches by the same, all signed, all illustration designs for the same periodical, showing i.a. birds, a lion and a monkey, a hunting scene and a schematic world map with inset illustrations of various animals. - AND 13 others similar for the same publications by other illustrators, i.a. "P. and B. Windo", mostly animals, but also a profile view of an aircraft carrier.