No month or year of publication in indicia or on cover. Information from Overstreet Price Guide.
Listed as being now on sale in Famous Funnies (Eastern Color, 1934 series) #90, in the feature Let's Get into a Huddle, issue cover dated January 1942 (on sale date, December 16, 1941).
Issue #91 also promotes this comic in the same feature. Issue #92 also had a blurb on this comic in the same feature but mentions that time was running out to purchase the comic.
Reprints of newspaper strips (dates have been removed)