A complete 7-value commemorative set issued by Yugoslavia in 1959 celebrating the Savezni Slet Partizana—the national Partisan Sports Festival promoting unity, physical culture, and youth athletics. Each stamp features striking modernist artwork of group sporting displays, including gymnastics, relays, ball games, high-dive, calisthenics, and synchronized athletic formations. Designed in a clean geometric style with bold color blocks, this set is a favorite among thematic collectors of sports, movement arts, and socialist-era design. A classic mid-century issue with strong cultural and historical appeal.