Kululu 2 stele was found by H. T. Bossert in 1945 at Kululu and moved to Kayseri Museum. It`s three sides was covered with a hieroglyphic Luwian inscription of Panunis the Sun-blessed prince. Stele dates to the mid of the eight century BC.
See:
- John David Hawkins, Inscriptions of the Iron Age: Part 1: Text, Introduction, Karatepe, Karkamis, Tell Ahmar, Maras, Malatya, Commagene. Part 2: Text, Amuq, Aleppo, Hama, Tabal, Assur Letters, Miscellaneous, Seals, Indices. Part 3, Walter de Gruyter 2000
- https://www.hittitemonuments.com/kululu/