It was first written in 1271, and there were 127 books written directly by Nichiren (among which were 30 principle images of the Nichiren Sho Sect); these are in existence today.
1271年（文永8年）に書いたものが最初で、日蓮直筆は127幅余（そのうち日蓮正宗の本尊は30体余り）が現存する。