Here is a sticker of Stanley Mouse's iconic skeleton and roses poster for the Grateful Dead, Number 26 in the Family Dog series. September 16 and 17, 1966 at the Avalon Ballroom. Before finding these in a headshop in New Jersey, I had no idea that stickers had ever been made of these posters. The bottom margin of the sticker includes the tagline: " (c) Chet Helms dba Family Dog" so these appear to be authorized prints. 4.75" x 3.25" nice bright colors in near-mint condition. Buy one before I figure out how much these are worth!