left: “Hippies in a psychedelic coffee shop“, San Francisco, 1967; right: “Pair of long-haired Londoners in a psychedelic corner of the Beatles’ Apple boutique“, London, 1968.
A few of the photos which turn up when searching for pictures of the psychedelic era at Google’s LIFE archives.
left: “Artist Peter Max on floor in room covered w. his psychedelic artwork“, 1967; right: “Poster Designer – Peter Max“, 1968.
above and below: Posters, New York. (?)