Official (promoter-sanctioned) 4th (*color) printing (January 1967 Communication Arts Magazine insert) 12&3/8 x 15&1/2" concert mini-poster/oversized flyer for NYC folk-blues-rock legends the Blues Project appearing with the Great Society (featuring Grace Slick) at the Avalon Ballroom in San Francisco, CA from 4/22-23/1966.
 
 Art by Wes Wilson, image is # 5 in the Family Dog/Avalon series. *This was the first full-color poster in the series, as well as the first Family Dog show held at the Avalon.

*NOTE: the Eric King guide refers to this version as OHB-D, although it is much larger than a handbill and is (unlike the two other pre-show handbills) printed in full-color. I'm calling it a 4th printing poster, as it is the fourth full-color version, printed after the OP-1, RP-2 and RP-3 posters.
 
 Medium-thin flat index stock poster is in very good (B/B+) condition; there is a semi-flattened horizontal center fold (as issued), along with a set of tack holes in the upper left and right corners and in the top/bottom center margin (bottom center tack hole has a tiny wedge-shaped drag tear), a light amount of handling/surface wear (a few stray pin-prick spots, tiny scratches/indentations and minor dings here and there) and a whisper of paper toning, otherwise fine.
 
 Very decent-looking lightly-worn example of this always-popular early-'66 Wes Wilson image from the venerable Avalon Ballroom.