Cover for Hemmelig brigade (Illustrerte Klassikere / Williams Forlag, 1965 series) #1
Cover for Hemmelig brigade (Illustrerte Klassikere / Williams Forlag, 1965 series) #2
Cover for Hemmelig brigade (Illustrerte Klassikere / Williams Forlag, 1965 series) #3
Cover for Hemmelig brigade (Illustrerte Klassikere / Williams Forlag, 1965 series) #4
Cover for Hemmelig brigade (Illustrerte Klassikere / Williams Forlag, 1965 series) #5
Cover for Hemmelig brigade (Illustrerte Klassikere / Williams Forlag, 1965 series) #6