On sale date from the publication date reported to the U.S. Copyright Office found in the Catalog of Copyright Entries, Third Series, Volume 23, Part 2, Periodicals, January-December 1969. Class B periodical. Copyright registration number B517681.
Letters from Dick Lawrence, Unsigned, Nick Harris, Joe Pastori, Mike Joerg, Len Harris, R. V. Davenport, Andrew Cain, Virginia Donaldson.