This was a novelty folding puzzle that says Where is the 5th Pig? Or in Dutch: Zoek Het 5 de Zwun? This was a piece of anti-German propaganda that when folded up shows Hitler. They were probably made by the British SOE (Special Operations Executive). These came in a few different varieties and different languages. You can download the pig one here. I’m not sure of the exact size but 8.5×11 printing paper should work as these would have been made as leaflets as cheaply as possible because it’s a “one and done” piece of propaganda.
Including one of Jackels that folds up into Mussolini.
