Sibu Congkan

四部叢刊 – 初編  The Sibu Congkan  edition of Dao De Jing. The Sibu Congkan from 1919 contained 504 old texts and was compiled by Zhang Yuanji 張元濟 who copied the texts meticulously from versions as old as the Song dynasty. The large characters are the text itself, the smaller characters are comments and explanations.