This memorial stone is inscribed with a history of a sutra library called Daejanggak Hall which was once part of the Silleuksa Temple. With the inscribed slab set in a groove cut across the stone pedestal and supported on each side by a stone pillar, this memorial stone is of a style popular during the late Goryeo Dynasty. It was the time when tortoise-shaped pedestals and capstones carved with dragons of the earlier period began to be replaced by simple square pedestals and the roof-shaped capstones. This memorial stone shows the elements of the latter. The inscription says that Yi Saek, a famous Neo-Confucian scholar, helped by the followers of Naong, a revered Buddhist monk at the time, wrote a thesis series called Gyeongnyullon (On Sutras and Laws) in memory of his deceased parents, and housed them in the library. The inscription, however, which is said to have been incised by a calligrapher named Gwon Ju in the printed style, is illegible in many places. Historians are not sure of the date of its construction, but, according to Haedonggeumseogwon (Epigraphs of Korea), it is assumed to have been built in 1383 (9th year of King U) of the Goryeo Dynasty.