Don has sold a LOT of cartoons in his career. Each numbered cartoon or illustration on the left side of this Blog is from a DIFFERENT magazine, newspaper, etc. Let's see if we can find out the total number of publications (places) where Don's work has appeared . . . . . (An unnumbered posting is a duplicate publication.)
What this guy needs is a can opener!
Forum magazine is published by the owners of Penthouse, and it used to include cartoons like so many other publications. (We haven't mentioned that for a while.) According to Wikipedia, Forum is more journalistic than others of its ilk featuring editorials and opinion pieces on controversial contemporary topics. Don's cartoon shown here was printed in the September 1978 issue.