See also https://asiamedals.info/threads/1929-korea-expo-keijo-support-association-special-membership-badge.26983/ ; https://asiamedals.info/threads/1929-korea-exposition-merit-medal-1929.26984/ .
Size 17.9 mm.
Weight 3 g.
Obverse
朝博 - Korea Expo
reverse
主催朝鮮総督府 - Sponsored by the...
