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 (and SIGNED in black sharpie pen by) Bonnie MacLean, image is # 71 in the Bill Graham/Fillmore series.
 
 Medium-thick flat index stock poster is in mint/near mint to near mint (A/A- to A-) condition; an absolutely GORGEOUS ARTIST-SIGNED example of this somewhat odd-looking mid-'67 Fillmore poster.