Original 1st printing 14 x 19&1/4" concert poster for Big Brother & the Holding Company (with Janis Joplin) appearing with Fleetwood Mac (featuring Peter Green) and Dr. John the Night Tripper*, at the Carousel Ballroom in San Francisco, CA from 6/20-23/1968. (*- Dr. John canceled; a good number distributed examples have his name crossed out with magic marker- this one is NOT marked)
 
 Art by Bob Seidemann, medium flat vellum stock poster is in excellent (B+) condition; there are a few light handling bends/tiny creases and a hint of paper toning around the outer margin area, along with a thin 3/4" bend and a tiny pin-prick drip mark in the lower right corner and a few soft handling creases hiding within the image area, but overall it's pretty nice- no holes/tears, etc...

 These shows were about a week before Bill Graham took over the lease for the venue and renamed it "Fillmore West".