Issued by Germany (Deutsche Bundespost) in 1990, this semi-postal stamp commemorates the 10th International Youth Stamp Exhibition held in Düsseldorf. The playful illustration of children from diverse backgrounds symbolizes global youth participation and the universal appeal of philately. The denomination 100 + 50 pfennig indicates a surcharge collected for youth philatelic initiatives and educational activities. Its colorful modern graphic design makes it a popular thematic collectible for youth, education, and exhibition-related collections. The stamp reflects Germany’s strong support for promoting stamp collecting among younger generations.