This is a very rare color variant of the 1994 poster for the Grateful Dead at Las Vegas by Alton Kelley. This poster is printed in blue, black, and gold. The back (see second picture) has red, which possibly should have been on the front. The third picture shows the poster as it was finally published. Note that the handbills on the proof sheet are on the left side, and they are on the right side in the final printing. You will not find this anywhere else (except from the few collectors who got it from me or from my source twenty years ago). I think that there were a total of about twenty of these that were salvaged from a closed print shop.