Original 1st printing 14 x 22" concert poster for Big Brother & the Holding Company (featuring Janis Joplin) appearing with Santana and Chicago (Transit Authority) at the Fillmore West in San Francisco, CA from 9/12-14/1968.
Art by Rick Griffin, image is # 136 in the Bill Graham/Fillmore series.
Medium flat index stock poster is in fantastic mint/near mint to near mint (A/A- to A-) condition; other than a whisper of almost-negligible handling and a tiny edge ding or two, this example can't be beat.
An absolutely GORGEOUS example of Griffin's iconic "Heart and Torch" image.