Publication office: 4600 Diversey Avenue, Chicago 39, Illinois.
Executive and editorial offices: 52 Vanderbilt Avenue, New York 17, New York.
On sale date from the publication date reported to the U.S. Copyright Office found in the Catalog of Copyright Entries, Third Series, Volume 2, Part 2, Number 2, Periodicals, July-December 1948. Class B periodical. Copyright registration number B146798.