I'd like to ask about three categories of comics ~ often single-panel ~ They would tend to be newspaper comic strips - Comics used for gambling tips, sports cartoons, and editorial cartoons!
Gambling ones are the most obscure category here ~ comics that delivered tips on gambling (Legal OR non-)...often literal tips, at least for horseracing!
Two such strips, " CHING CHOW " (;ater ~ heh, heh ~ retconned into " MISTER LUCKEY "), which ran in the NEW YORK DAILY NEWS, and I guess?? with the Tribune-News/Tribune Media Services syndicate - and " JOE AND ASBESTOS ". Backwards respectively, they delivered tips on the horses ~ and the illegal numbers!!!!!!!!!!! CC/ML's version would be used in conjunction with a " CHING CHOW DREAM BOOK ", which I saw in a N.Y. area store in the 80s. Looking this up, I saw that Robby Reed wrote a book on CC published in 2017. I suppose it's likely to be still copyrighted ~ Even early on? ~ I'd think J&A might not be. Other examples of this genre?
Sports cartoons were editorial cartoon-type cartoons offering comments on the local teams fortunes, generally, appearing in the Sports section. They were once a major part of comic strips, with the National Cartoonists' Society offering them as a category in the Reubens ~ but i guess they faded away over the years. The NYDN's sports cartoonist, Bill Gallo, worked well into this millenium, dying in the saddle in 2011, I just looked it up.
Editorial cartoons, of course, are the " STORMCLOUDS GATHERING OVER EUROPE " category of political comment/joke ~ I once, in the Cartoon Art Museum, saw an original of a cartoon with exactly that premise, literallyl showing storm clouds over Europe ~ from the OAKLAND TRIBUNE, in the late 50s, by a cartoonist named Lou Grant!
People were more " literal " then
! Such old-school editorial cartoons tended to not have word baloons, too ~ Modern ones do. The " kidults " taking over?
(Ha ha. Bill Maher.)
When I was a kid, however, my family had a bunch of AMERIACN HERITAGE books, which reprinted super-elaborate double-page full-color editoons from JUDGE and PUCK (which gave its title eventually to the mid-20ths' " Puck The Comic Weekly " in Hearst newspapers), politics/culyure/humor magazines in post-Civil War America...Maybe you have examples of all of these up? Anyhow.