1932-1943:   He had an important role in humorous newspapers and children's magazines, of which we can highlight Semper Fixe and O Senhor Doutor, with the Adventures of Tom Migas and his Cavalo Caralinda, and the adaptations of Bucha e Estica.  He was the graphic director of the SNI and technical consultant for the Costa do Sol Tourism Board.  He developed much of his activity as a designer and illustrator, with a notable presence in the publications of the Junta and in the Portugal País de Turismo yearbooks, where he shared the artistic collaboration with Manoel Lapa. Oskar has given a face to Portuguese tourist advertising for more than a decade with his energetic suns, a source of life … and foreign exchange.