Original 1st printing 11&1/2 x 17&1/2" concert poster for local PNW psychedelic bands Sound Vendor and Pot Roast with Dr. P.H. Martin's Magic Medicine Show (maybe) at Pythian Hall in Portland, OR on 8/5/1968. Artist unknown (show presented by "Brotherhood Productions"), medium flat index stock poster is in excellent to near mint (B+ to B+/A-) condition; just a subtle trace of edge toning with a few tiny dings and surface smudges in the top left/bottom right corners, otherwise a fine example of this VERY unusual Pythian Hall poster with a great-looking (and totally weird/trippy) graphic. Be sure to check out additional listings from this extensive (and VERY cool) Portland collection, including several VERY unique and interesting one-of-a-kind items- just like this one!