Although it is believed that this epitaph was excavated from the ridge of a hill located alongside the Yoshino River, the details are unknown. The surface of the reed-shaped gilt bronze plate has an outer border, and the peripheral edge has fish egg patterns (nanakoji). According to the three-line epitaph inscribed on the plate, it was made for Yamashiro no Imiki Masaka from Yamashiro Village, Ishikawa County, Kawachi Province (in the region of today’s southeastern Minami-Kawachi County, Ōsaka Prefecture), who passed away on November 25, Jinki 5 (728) (the year of earth-dragon) and his wife Kaya no Imiki Akiba, who passed away on June 14, Yōrō 6 (722) (the year of water-dog). He had served four emperors since serving Emperor Monmu (683–707; r. 697–707). According to the family register in the Shōsō-in Documents in Yōrō 5 (721) and considering the fact that the year of earth-dragon is Jinki 5 (728) and the year of water-dog is Yōrō 6 (722), Akiba’s ashes were relocated to Masaka’s grave.