Original 1st printing 14 x 20" concert poster for "Amazing Electric Wonders", featuring the Grateful Dead appearing with Buffalo Springfield (featuring Richie Furay, Neil Young and Stephen Stills) and Blue Cheer at the Shrine Exposition Hall in Los Angeles, CA from 11/10-11/1967.
Art by John Van Hamersveld, image is featured in the Art of Rock book on page 278 (plate 3.74) and is the very first image in the Pinnacle/Shrine series.
Medium flat index stock poster is in very good (B/B+) condition; there are a series of tiny staple holes scattered around the outer margin area/corners and within the image area, light handling wear, a small scuff/drag mark that goes between "Springfield" and "Grateful" down to the middle of "and", along with a large marker scrawl on the reverse ("50 c." -fortunately, it doesn't bleed through to the front of the poster), otherwise it is a VERY nice-looking bright/non-faded example of this elusive Pinnacle Shrine poster (according to John Van Hamersveld in "the Art of Rock", only 6-800 were printed).
Check out the 11/11 Dead set HERE:
https://archive.org/details/gd1967-11-11.116369.sbd.motb-0173.flac24/gd1967-11-11.sbd.motb.0173.s1t07.flac