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Indicia (scan courtesy of Greg Gatlin): MARVEL MYSTERY COMICS published monthly by Timely Publications, 330 West 42nd St., New York, N. Y. Publication office, 8 Lord Street, Buffalo, New York. Entered as second class matter at the Post Office at Buffalo, New York under act of March 3rd, 1879. Entire contents copyright 1939 by Timely Publications. Vol. 1 No. 2. December 1939. Yearly subscription $1.00. Single copies 10 cents.

On sale date from the publication date found in the Catalog of Copyright Entries, Part 2, Periodicals, New Series, Volume 34, 1939, Number 4. Second class periodical. Copyright number 432327.