A pristine poster from the Grateful Dead’s first concert is up for auction, but hardcore Deadheads will have to splurge to get their hands on the historic item. The colorful hand-drawn crayon ...

Jefferson Airplane and the Grateful Dead have just ... The psychedelic concert poster, with bubbled, flowing lettering and lava lamp colors, was invented by the man behind that now classic ...

A piece of Grateful Dead history is up for grabs. Available for bid on Heritage Auctions is a primitive hand-drawn poster that asks, “Can You Pass the Acid Test?” According to the listing ...