Wed 12 Oct 2022, Day 30/61, 4/7. The Museum has Hangeul metal print blocks from c 1455: the ones I saw are from the 17-18th c. Earlier this year Hanguel printing blocks were excavated in Seoul possibly dating back to 1434. (Korea Times article: http://www2.koreatimes.co.kr/www/culture/2021/06/145_311325.html)
Metal Hanguel printing blocks from the National Museum of Korea
My journey to Korea 