These are the printing plates used to print A Collection of 100 Joseon Children’s Songs composed by Hong Lanpa. 51 printing plates containing 49 songs remain. Hong published a mimeographed version of the collection in 1929 and then two other collections in 1930-1931 and 1933. The songs include melodies beloved of all Koreans, including Gohyangui Bom (The Spring of My Hometown).