Original 1st printing (OP-1 in the Eric King Guide, this is the version with the blue/green ink mark in the lower left corner) 20 x 14" event poster for the 4/15/1967 Haight-Ashbury neighborhood "Clean-In".
Art by Victor Moscoso, image is # 15 in the Neon Rose series.
Medium flat index stock poster is in GORGEOUS mint/near mint to near mint (A/A- to A-) condition; aside from a few light scuff/rub marks on the reverse, this example looks like it just rolled off the press... VERY crisp/bright. Great-looking early-1967 Haight-Ashbury poster with extra-bright colors.