Original 1st printing 12&5/8 x 20" concert poster for the Grateful Dead appearing with Quicksilver Messenger Service and the P.H. Phactor Jug Band at the PSC College Center Ballroom in Portland, OR on 1/29/1968. Art by George Hunter, similar images (Crystal Ballroom/Eagles Auditorium) are featured in the Art of Rock book on page 287. Medium flat index stock poster is in STUNNING near mint (A- to A-/B+) condition; just a pair of pieces of archival tape on the top edge of the reverse side and the slightest trace of handling, otherwise it's an absolutely GORGEOUS example of this edition of the "NOTICE!" poster. While no recordings from this show exist (or have surfaced), check out a recording of the 2/2 Crystal Ballroom show (recorded in Portland only a few days later) HERE: 

http://www.archive.org/details/gd68-02-02.sbd.jools.15801.sbeok.shnf