『洞門亀鑑』の写本について

抄録

This paper focuses on the extant copies of Tomon kikan, especially those preserved in Eihei-ji and Soji-ji.
The original manuscript of Tomon kikan was written by Tokuo Ryoko (1649-1709) in 1703, the 16th year of the Genroku period in the Edo era. No printed copies of this work have been found, with only several manuscript copies are preserved.
On my examination of the end notes of these two manuscripts, I found recorded that the original Tomon kikan was kept at Soji-ji and Genko-an soon after it was finished, and it was copied in writing at Chokoku-ji in 1850, the 3rd year of the Kaei period. My conclusion is that one of the extant copies came down to us today via Chokoku-ji.