I found a number of such advertisements for Studebaker automobiles, and they are displayed below. Interestingly, the same model year (1929), Studebaker also had more traditional-looking full color advertisements. Perhaps placement of each style depended on the target magazine.
Unfortunately, I haven't been able to discover who Otis was. Internet searches have turned up nothing useful so far. One possible source is the New York Art Director Club annual for, say, 1930. But copies are not convenient to where I live.
At this point, I can think of two possibilities. One is Samual D. Otis (1888-1961) who did some commercial illustration. Another is Otis Shepard (1894-1969), best known for his Wrigley's chewing gum advertising. I wrote about him here. Once upon a time I had a book about Shepard and his wife, but it was discarded during a downsizing a few years ago. Sadly, it might have offered information on my Otis problem.
Perhaps a knowledgeable reader can provide an answer in Comments.
Click on images to enlarge.