Pair of original 1st printing 12&5/8 x 18&1/2" concert posters for Quicksilver Messenger Service appearing with the Grass Roots and the Family Tree at the Fillmore Auditorium in San Francisco, CA on 4/22-23/1966.
Art by Bonnie MacLean, image has been designated # "0" in the Bill Graham/Fillmore series (not officially a numbered piece, this one falls between BG 3 and BG 4).
Medium flat vellum stock posters (OP-1 and OP-2 in the Eric King guide) are both in near mint to excellent (A- to B+) condition; the OP-2 has a couple of well-camouflaged tiny thin hairline bends, a thin diagonal bend and a few handling bends along the bottom margin, the OP-1 has just a couple of nearly-invisible pinch dings, but is otherwise in clean shape.
VERY nice-looking pair of original BG 0 posters, one of each type.