Original 1st printing 13&7/8 x 21" concert poster for rock & roll pioneers Bo Diddley and Big Joe Williams appearing with Big Brother & the Holding Company (featuring Janis Joplin, from 7/4-6) and Quicksilver Messenger Service (from 7/7-9) at the Fillmore Auditorium in San Francisco, CA from 7/4-9/1967. (*also lists the following week's shows featuring the Paul Butterfield Blues Band and Roland Kirk)
 
 Art by Bonnie MacLean, image is # 71 in the Bill Graham/Fillmore series.
 
 Medium-thick flat index stock poster is in near mint to excellent (A-/B+ to B+) condition; there is a tiny 3/4" diagonal bend in the top left corner tip, a nearly-invisible soft roll bend along the lower right margin, a touch of handling, a stray edge ding or two scattered around the outer margins and a tiny pin-prick surface spot or two hiding within the image area, otherwise fine.

 Very nice-looking example of this odd-looking mid-'67 Fillmore poster.