DPRK, North Korea, Kim Bong-hai's biological system, 1964

This 1964 DPRK stamp commemorates Kim Bong-hai's biological system, featuring a stylized depiction of cellular structures and a portrait. The stamp displays a vibrant green and red color scheme with a central image framed by a simple border; it appears to be in good condition. It offers a glimpse into North Korean scientific and ideological themes of the era.