Anon. San Francisco International Pop Festival 1968 - oversized promotional postcard. San Francisco: .
Colorful design promoting this festival highlighted performances by Eric Burdon and the Animals, Iron Butterfly, Jose Feliciano, the Chambers Brothers, Canned Heat, Procol Harum, Deep Purple, CCR and many others. Rerverse offers info on ticket outlets and more and offers space for an address and notes that a 6 cent stamp should be used, . 5" x 6-5/8"; Well-preseved with little wear. Near Fine condition.
This cataloguer found some Procol Harum to listen to while writing. See www,djtees.com for a 2018 blog entry that offers a reminder of this concert that was held just a year after the Monterey International Pop Music Festival. Pop, maybe not so much.