Mitch- PM me with your snail address and I'll send you at least a copy of the poster for the First Thirty-Fifth Annual Berkeley Free Fiddlers Convention, 1968. The text was by Hank Bradley and the drawings (I think) by Rick Shubb. It may take me a week to find it in the freshly massively culled and reorganized basement clutter (the first activity of this newly retired catter), but it is definitely out of the ordinary from the Bay Area posters of the day.
Carter B