Berlin, Akademie-Verlag 1961- 4 parts bound in 2 physical volumes, together [24] + 1226pp., 27cm., uniform modern hardcover bindings, original softcover bound in, with 3 ribbon markers in each volume, few annotations in red ink on ca. 20 pages, else in very good condition, ["Unveränderter Nachdruck der zweiten verbesserten Auflage von 1927 und 1930"], C103310
Leipzig, J.C. Hinrichs 1922 Volume 4 only: 132pp. + 1 plate out of text, Original 1922-edition, 30cm., bound in modern cart. hardcover, with 3 ribbon markers, text clean and bright, previous owner's signature on title page, good condition, C103334