Rare Large Joseon Dynasty 19th Century Korean Medicine Chest, Yakjang. Reproductions of Joseon Dynasty medicine chests are popular. Now you have a rare opportunity to acquire an authentic one that was used in a genuine historical and cultural context by a traditional Korean doctor in the 19th century. 42.75w x 38.75h x 15.5d inches, 108.5w x 98.5h x 39.5d cm.