Songjo pyojeon chongnyu (General Memorials and Addresses to Song Dynasty Emperors)

This is a collection of model memorials and addresses submitted to Song emperors, classified according to type, to be used as a reference in writing memorials and addresses to the king. This book was printed in gyemi font, a metal type cast in 1403. The volumes of the same edition at the Gyujanggak Archives, designated national treasure no. 150, are different.