Original 1st printing (OP-2 in the Eric King guide) 13&3/4 x 23&3/4" concert poster for the Young Rascals appearing with the Doors (1st Fillmore performances) and Sopwith Camel at the Fillmore Auditorium in San Francisco, CA on 1/6-7/1967.
Art by Wes Wilson, image is #44 in the Bill Graham/Fillmore series.
Medium-thick flat index stock poster is in BEAUTIFUL mint/near mint (A/A- to A-) condition; there may be a stray fingerprint/surface ding hiding somewhere, but I certainly can't see anything obvious... a fantastic-looking example of the very first Doors Fillmore poster.