No special features recorded
c. 1851–1861 BOR
1857 Pingding Iron BoR Mint (this page)
1857 1 mun (訓 Hun for Hullyondogam)
1857 Japan 1 Mon
1857 1 mum
1857 1 mun (Hullyŏndogam)
1857 1 mun (Hullyondogam)