Original 1st printing 13&5/8 x 20&3/4" concert poster for the Blues Project appearing with the Mothers of Invention (featuring Frank Zappa) and Canned Heat at the Fillmore Auditorium in San Francisco, CA from 2/17-19/1967. 
 
 Art by Wes Wilson, image is # 50 in the Bill Graham/Fillmore series.
 
 Medium-thick flat vellum stock poster is in good (B) condition; there are tack holes in all four corners, along with a bit of edge wear (tiny razor slice across te top, a few little edge tears and dings), a moderate amount of toning/fading, a few well-camouflaged thin bends/handling creases and tiny pin-prick surface spots here and there, a few thin horizontal/diagonal bends running across the upper right margin and a bit of wear on the reverse side (scuffs, mounting tape remnants and (I'm not kidding) a footprint), otherwise OK. 

A bit worn, but it's all there and it's all original.