New York: The Master Key Institute, 1928.
First edition. Complete 7 volume set, averaging in Very Good condition. Bindings rubbed at extremities and occasionally scuffed or soiled; cloth to Volume I rubbed heavier at the upper joint near the crown with a patch of fraying. Stamping on front covers rubbed, as is typical. Pages toned. A complete set, with average wear given age. Item #180623001