Original 1st printing 27&7/8 x 19&7/8" concert poster for Big Brother & the Holding Company (featuring Janis Joplin) appearing with Blue Cheer and Eighth Penny Matter at the Family Dog at 1601 West Evans in Denver, CO on 9/8-9/1967. (*1st Family Dog held shows at the venue).
Art by Rick Griffin, image is # 79/D-1 in the Family Dog/Denver series. This is the large format (OP-2 in the Eric King Guide) version.
Medium flat index stock poster is in excellent (B+) condition; there is a razor-thin sliver of discoloration/darkening and a series of ultra-tiny edge "nips" scattered along the upper/lower margin area, along with a few light pinch dings here and there, a whisper of moisture rippling to the paper and a nearly-invisible soft bend in the lower right corner, otherwise fine.
An absolutely FANTASTIC-looking example of this extra-large Rick Griffin classic from the grand opening of the Denver Dog.