Any painting on the Airfix boxes. Not only were they art in their own right, but art is supposed to stir the imagination.
nothing better stirred my imagination as a five or six year old, than seeing a picture of a Flying Fortress in trouble, but bravely fighting off a jerry attack, or a Stirling bomber being loaded up for its next mission, or. Crusader tank charging across the desert all guns blazing. See ! It's working already ! , now where's my new airfix catalogue !