This poster was issued by Military Graphic Department of Warsaw and designed to alert children to the dangers of duds (undetonated explosives or ammunition rounds), urging them to keep away and alert a responsible adult. A black-and-white night scene showing a child narrowly escaping a huge explosion is dramatized by the red, geometric forms describing the blast. (Huge numbers of unexploded bombs remained in Europe after World War II; even now, some 80 years later, many are discovered each year.) Polish painter and graphic designer Zbigniew Waszewski graduated from the Academy of Fine Arts in 1950 and went on to design numerous posters for government agencies in Communist Poland, promoting health and safety and the World Student Congress of 1953, among other issues. His designs typically reflected the avant-garde idioms of the postwar Polish School of Posters.