Coloured calk drawing, 30 x 24 cm, monogr. and dat. JH 81 in the lower middle as well as dedicated, in the book 'Postkarten', edited by the art society Oldenburg, 1981. - One of the most important modern German draughtsmen a. graphic artists. J. studied at the Hamburg Landeskunstschule in A. Mahlau's classes of liberal a. applied arts. He merged the traditions of the Old Masters a. the achievements of modernism to create his own pictorial language.