Champion!
Thanks for sharing! Looks like a great museum, and worth visiting. I've recently done some reading on the Osaka Mint, and its connection to the South Korean Mint.
The Osaka Mint is where many of the South Korea Mint's designers, engravers, and other technicians had received their training in the 1960s and 1970s as the Korean Mint was moving toward independent operations and not relying so much on the Osaka Mint to make their master dies for their coins or copper plates for their banknotes. I also learned that the last time that the South Koreans wanted to contract with the Osaka Mint, it was to produce the master dies for the commemorative coins of the 42nd World Shooting Championships (September 1978). Despite making master dies for the Koreans in the past, the Japanese Finance Ministry told the Koreans that they couldn't do it: This time they got snagged on a technicality in Japanese law that prevented it. The Korean Mint went ahead and got the Japanese company, Toppan to do it instead. Even then, the Korean Mint finally decided to use engravings and master dies that their own designers and technicians produced(!), even after paying Toppan the sum of over 3 million Yen to make the dies and collars...