Every so often I get back into digging through psychedelic typography driven posters from the Fillmore Auditorium, a staple music venue in San Francisco CA for the music of the late 60's. Here are a few of the posters from the Fillmore, for sale at a site called Wolfgang's Vault.
Surfing around looking for more early american ad's, I came across a rad resource. Duke University Hooked it up! Check out the site, and its images for the public to use! Thank you intelligent America.