I don't know the answer but I am eager to hear what others say --it is clear that it is the cartoon of Herbert Lawrence Block "Herblock" who began his editorial cartoonist career in Chicago in 1929. I think he was doing freelance work in 1930 before becoming one the great editorial cartoonists of all time. Since this was inserted in the 1930 Blue Ribbon Malt Premiums it fits the time period. Much has been written about his career so I am sure a definite answer will be forthcoming.
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