Notes:
The on-sale date is from the publication date recorded in the Catalog of Copyright Entries, Part 2, Periodicals, 1940, New Series, Vol. 35, No. 3. Copyright No. B 459577. See https://publicrecords.copyright.gov/application-card/CC19381945B_459000-460999.0578 for more details. No renewal record found on copyright.gov nor is any renewal notated in the Catalog of Copyright Entries, Third Series. Part 2: Periodicals Jan-Dec 1967: Vol 21.