May 12, 1981

Helmut Andreas Paul (Hap) Grieshaber (February 15, 1909 to May 12, 1981) was young when the Nazis took over, but already an established artist. He had however only recently found the medium for which he is remembered today. According to an informative site: 

"The artist began concentrating on woodcut techniques in 1932 and the woodcut soon became one of his most important artistic mediums. He discovered his typical graphic style in the so-called 'Reutlinger Drucke', a style which is strongly influenced by medieval woodcut techniques."

From 1933 he was forbidden to work as an artist, or exhibit, and spent the next years working as an untrained laborer, doing for example, delivery work. He was in the German army during the war. And afterwards, we read from the same site:

 He was offered a teaching post at the Bernsteinschule near Sulz am Neckar in 1951. Other teaching positions followed: at the Akademie in Karlsruhe as Erich Heckel's successor in 1955 and at the Akademie der Künste in Berlin in 1956. Grieshaber resigned from his teaching post in Karlsruhe in 1960 out of protest against the examination regulations. The artist spent the next two years working for the journal 'Labyrinth' together with Walter Warnach and Heinrich Böll. In 1964 he founded and co-published 'Engel der Geschichte', a journal dealing with current topics of society. He also created artworks for public spaces, such as wooden reliefs, mosaics, murals and stained-glass windows. Grieshaber was honoured with numerous prizes and retrospective exhibitions. ....

Here is an example of his "large format woodcuts."

I think he compares with Picasso.