Gray, Maxwell (pseudonym of Mary Gleed Tuttiett). THE BLACK OPAL.

New York: D. Appleton & Company, 1918. Octavo, pp. [i-v] vi-ix [x] 1-320 [321] [322: blank], publisher's purple boards with burgundy shelf back, front and spine panels stamped in cream. First U.S. edition, first printing. (#177642)
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