Around 1921, he announced that he possessed "the handwriting of the Emperor Chokei," "the handwriting of the Emperor Godaigo," "the handwriting of Nichiren Shonin" etc.
大正10年頃、『長慶天皇御真筆』、『後醍醐天皇御真筆』、『日蓮上人御真筆』などを所有していると公開。