Additional data from Tom Lammers (22 May 2016).
On sale date from the publication date reported to the U.S. Copyright Office found in the Catalog of Copyright Entries, Third Series, Periodicals, 1946-1947, New Series, Volume 1, Part 2, Numbers 1 & 2 (Incorporating Part 2, Volume 41, 1946, New Series). Copyright registration number B46865. Copyright given to Terry Toons, Inc.