PHO Khun Ramkhamhaeng stone inscription Maharaj or ' primary ' is 1 stone inscription stone inscription recording the history of the reign of the Sukhothai. This stone inscriptions. Prince mongkut (later King Mongkut Phra Rama). When the priesthood is also found on Slate color 8 month RS. 3, 1214 matches Friday, January 17, 1834 or 2376 (1833) [1] at the Citadel city wall, Muang, Sukhothai. The main square has a side he 111 cm height 35 cm thick tents as Siltstone worsted [2] has written on all four sides. Currently stored at National Museum, Phra Nakhon, Bangkok.
The contents of the inscriptions break into three steps. Episode one Lines 1 through 18 is a story of history, PHO Khun Ramkhamhaeng, since he was born, until the throne. Use the words "Gu" is a principle. Part 2 does not use the word "Gu", but says "Pho Khun Ramkhamhaeng" about events and traditions in Sukhothai and the third since the 4 lines 12 to the final line. There are different from books 1 and 2, so that seems to be written up later as the praise and glory by PHO Khun Ramkhamhaeng and the territory of the Kingdom of Sukhothai mentioned [2]