|Pseudonym reading||Check out the contents of the report|
|Specified type||Prefecture designation|
|Designated date||April 26, 1977|
|location||Hiraizumicho Hiraizumi Osawa|
|home page||Hiraizumi's cultural heritage|
Hemp paper, roll book, folded book, 1 line 5 lines 1 line 17 letters.
There is a secret book of "Oi Nagai, October 3 ○ ○ 1 School Completed".
Tradition reason is unknown, but it is one of the classics that convey the writing style of the period of the North and South Dynasty, and it is a valuable material as a medieval sage.