monson kippen bag-o. was one of the great. blood of german pows well contemporary art he was incredibly prolific producing thousands of works of all sorts of artistic endeavor including even $150.00 books in his short lifetime he lived on the edge and died in 1907 of liver cancer just 44 years old right now a museum in the western german city of bone is holding a huge retrospective of his work which reflects his extraordinary production in all its facets and cold tends. provocative cynical sarcastic artist martin kemp and made fun of almost everything including himself. pope benedict personally complained about this.