Original 1st printing 11" square concert mini-poster for the Grateful Dead appearing with Country Joe & the Fish at the Carousel Ballroom in San Francisco, CA on 2/14/1968.
Art by Stanley Mouse & Alton Kelley, image ("Be Mine") is featured in the Art of Rock book on page 182 (plate 2.174).
Medium flat index stock poster is in very good to excellent (B/B+ to B+) condition; a series of tack/staple holes (all four corners, top/bottom center and right center margins), a couple of very soft diagonal bends in the top left/center margins, a few light handling dings and a whisper of surface wear, otherwise fine. A very sweet example of the infamous Valentine's Day "Be Mine" image.
One of the more incendiary shows from early '68 (Bob Weir's infamous "Burn down the Fillmore, gas the Avalon" chant during "Alligator" was birthed this night), the full show was released as part of the "Road Trips" series. Check out "Cryptical Envelopment/the Other One/New Potato Caboose/Born Cross-Eyed" from the show here;