After Rudolf Petersson worked as an advertising artist in the United States, he started a comic in weekly Swedish magazine, Allt for Alla (Everything for Everybody). Here, he created the character of the soldier Mandel Karlsson of the Swedish Army, in the series '91:an' (number 91). After a couple of years, the comic moved to the magazine Levande Livet (The Living Life). When Petersson retired, the comic was continued by Nils Egerbrandt. In 1965, he was the first person to receive the Adamson Award. From 1960 until his death in 1970, he drew 'Hjälpsamme Jönsson' for Levande Livet.