This is Brian Dean's illustration for his piece at Medium. Check out the return address on the letter!
In my March 23 blog posting, I pointed to Brian Dean's article at Disinformation on the resurgence of interest in Robert Anton Wilson. I mentioned that many examples of that resurgence had gone unmentioned in the article, and the estimable Sue Howard, in the comments, explained that Disinformation
He's now published the original longer version of his piece, which offers a much more more complete picture of the resurgence and which name-checks a number of folks left out in the earlier version, such as the Cosmic Trigger play and Michael Johnson's Overweening Generalist blog. (He also mentions me, although as he had linked to my blog in his original piece, I personally was not unhappy.)
There are still folks left out, but it seems to be that's a testament to the breadth of the RAW revival movement. Any attempted survey probably is going to overlook someone who had contributed substantially to the movement. I should probably make my own attempt to survey the "scene," but I'm worried about hurting the feelings of anyone I inadvertently overlook.