Confirm copyright
Off
fan_photo_Image
Date
dead comment
A Few Years Before I was Old Enough to Hop on the Bus
but if you get a copy of "Art of the Dead" by Philip Cushway (a really nice book about the evolution and contributions of the folks behind a lot of the posters from the early years), that particular piece appears on the fold out that is page 66. It is reported to be a Kelley (Alton) production for "The Joint Show" (double entendre intended I am sure!), an exhibition for the poster artists that opened at the Moore Gallery in San Francisco on July 15, 1967. I suspect Cushway (and certainly Mouse) could add a lot more, but hopefully this gets you on the right track. Best regards ...
My pleasure ...
In the interest of full disclosure, I should add that although the book is well packaged and has some nice backgound info on the artists and, of course, some great reproductions, it also contains some frustratingly small reproductions -- but I imagine that's the price of trying to get so much great art into a single package. There is also a thread on this book here that might help explain things better than I (and surprise, surprise offer differing opinions):
http://www.dead.net/features/art-dead/new-book-celebrates-art-dead
The Great Poster Trip: Art Eureka
You asked about the poster with Pigpen. I have a book "The Great Poster Trip: Art Eureka" that was published in 1968. That poster is in there. It's by Kelly and is one of several posters that artists created to advertise a "Joint Show" they put on displaying their work. Other artists included Wes Wilson, Stanley Mouse Victor Moscoso and Rick Griffin. It was held at the Moore Gallery, 535 Sutter in San Francisco starting on July 17, 1967. Look carefully at the lettering across the top and it reads "Joint Show."