Check out this Freddie King Armadillo World Headquarters poster from 5/19/72; Freda and the Firedogs opened. The Poster Artist was my pal Jim Franklin. He made a very psychedelic poster.
I have been told that the shift, from the psychedelic and colorful Vulcan posters, to the detailed ink drawings of the Armadillo was the result of the drug of choice for the poster artists moving from psychedelics to speed. According to my Source, the poster artists would get all hopped up on speed and GET ALL INTO drawing with ink.
This poster is another from the home of a big time collector; bigger than your's truely. He has been kind enough to share some images. Below is some footage of Freddie at the Armadillo with Jim Franklin as Emcee.