One of the lesser-known propaganda efforts by the Allies in WWII, involved the distribution of “Find The 5th Pig” pamphlets. This particular example was reportedly dropped by the SOE (Special Operations Executive) over the Netherlands to serve as a small morale booster.
If you fold the paper according directions, the four pigs become the fifth pig: Adolf Hitler! Readers of a certain age will recall how the back inside cover of Mad Magazine was a modern version of this method of belittling leaders and social trends in the 1970s and 80s .
I spend a few hours cleaning up a photo of a stained original version of this leaflet, in case anyone wanted to print it out: