Reprint of a Grateful Dead poster from 1966 Avalon Ballroom concert in San Francisco.  This limited series was created in 2008.  It is an Artist's Proof signed by both artists - Alton Kelly and Stanley Mouse.  It is numbered 26/50.  When the young team of Alton Kelley and Stanley Mouse worked on this, their first poster for the Grateful Dead, the Dead were still recently re-named, and their  spelling not fixed in the artists' minds.  What was a limited-run spelling error in '66, made this collector's dream find!