[MYSTICISME] SEDIR, Les Amitiés Spirituelles, 1920-1971

Collection of 166 volumes of the Bulletin of the Association of Spiritual Friendships founded in 1920 by Paul Sédir, French esotericist and mystic.
This association, still active, defines itself as: "a group of people of good will, whatever their nationality or religion, who recognize Christ as the only Master of the interior life and the Gospel as the true law of consciences and peoples."

Volume details:
2nd year 1920-1921: 8 issues (missing numbers 7, 8, 10).
3rd year 1921-1922: 10 issues (full year).
4th year 1922-1923: 9 issues (missing number 6).
5th year 1923-1924: 9 issues (missing number 4).
6th year 1924-1925: 10 issues (full year).
7th year 1925-1926: 9 issues (missing no. 5).
1928: no. 1 .
1930: no. 7, 9, 10 .
1931: no. 12 .
1932-1937: 16 issues (no. 18 to 34) .
1938: no. 39 .
1939: no. 43, 44 .
1950-1971: continuous series of 88 volumes (no. 1 to 88).