01 / Kofun stone
The basin by the assembly hall is saidto be stone from a kofun's burial chamber.

The basin is inscribed with the words for Tenmangu, Kyowa 1 (1801), and the parishioners of Higashi-Otsuka village. The city records it as reused from part of the burial chamber of Kawachi Otsukayama Kofun. The Tenmangu shrine once stood on the mound's round rear part and was merged into Shibagaki Shrine in Meiji 41 (1908). The kofun became a mausoleum reference site in 1925, and the village on the mound was ordered to move out by 1928.
- Inscribed Kyowa 1 (1801)
- 1908: Tenmangu merged into the shrine
- 1925: made a mausoleum reference site


