It’s the Grateful Dead’s 60th anniversary, and a piece of genuine psychedelic history just surfaced from that era of counterculture fog in San Francisco.

A pristine poster from the Grateful Dead’s first concert is up for auction ... “We were very innocent, and mainly wanted to go for the music,” Kathy told Heritage, noting that when Kesey ...

When the Grateful Dead played its first live show Dec. 4, 1965, the band wasn’t exactly a newcomer to the music scene ... bands in history. A poster from that first concert, drawn in crayon ...

His advertisements have become coveted works of art. The psychedelic concert poster, with bubbled, flowing lettering and lava lamp colors, was invented by the man behind that now classic “Flames ...