A less familiar offshoot of Western Publishing's (Dell and Gold Key Comics) comic book product was "March of Comics".
"March of Comics" was designed to be a giveaway premium, and was used for promotional purposes by major retailers such as Sears, and by others you probably never heard of.
This line, while completely separate from Western's "standard or traditional" comics, featured the same characters and properties Western produced for its Dell and Gold Key Comics series – Disney, Warner Bros., Hanna-Barbera, Walter Lantz, MGM, and many more - and were written, drawn, and edited by the same talented individuals that produced the standard line.
Even Carl Barks produced three notable Donald Duck efforts for March of Comics, with dealer prices so high I could never consider owning any of them! Thank goodness for reprints...
Earlier issues of March of Comics were full comic book size, with later versions produced in this oblong 7 ½” x 5 1/8” size...
...Finally settling into a more book-like rectangular 5” by 7”, with issues such as seen below. You can read more about this JETSONS issue of March of Comics WITHIN THIS POST!
March of Comics began in 1946 and ran until 1982! But, today's "Comic-Boxing Adventure", concerns MARCH OF COMICS # 75 BUGS BUNNY, from 1951.
The stories, as noted, were typical Western Publishing fare. And, when published in the early "comic-book-size" format, appeared virtually identical to their concurrent Dell counterparts.
Honestly, if not for the indicia, could you tell if this was a standard Dell "Bugs Bunny", or a March of Comics? ...I couldn't!
At this particular time, the interior page count was 22 pages, vs. a standard comic book's 32 or more. A story such as this would run 18 pages, with the remaining four pages used for puzzles, games, and other activities that (SHUDDER!) most often required a pencil, pen, crayon... or even (GASP!) scissors!
"The Mysterious Ocean Cruise" ran for the aforementioned 18 pages, with "writer unknown" and art by Ken Champin.
And, our usual comic-book-history-lesson aside, it is the ART by Ken Champin - and ONE PANEL IN PARTICULAR - that makes this an "Adventure in Comic-Boxing"!
One might consider this something of an "Ironic Cameo", considering its insertion into the silent medium of the comic book...
...But, isn't that a nice caricature of MEL BLANC, the VOICE of Bugs Bunny, and virtually every other Warner Bros. cartoon character, save (ironically, again) Elmer Fudd, whose pocket he's seen picking!
So, enjoy 'em... nay, TREASURE 'em, if you find 'em! ...And happy hunting!