Issued in 1966 by the Soviet Union, this 6-kopeck commemorative highlights the 13th World Poultry Congress, an influential global forum on poultry science. The design features a stylized white hen set against a deep maroon globe, symbolizing international cooperation in poultry farming. Flanking illustrations of ducks and geese add thematic richness. A clean, bold Soviet graphic style makes this issue highly desirable among collectors of agriculture-themed or Cold War-era commemoratives. Excellent for thematic collections in birds, farming, livestock, or USSR conference issues.