Blue Cheer rocked out of San Francisco in the late 60’s and early 70’s. They epitomized the psychedelic sound of that era. Jim Morrison of the Doors called Blue Cheer “the single most powerful band I’ve ever seen.” Their biggest hit, a cover of Eddie Cochran’s “Summertime Blues,” reached number 14 in 1968. The 45, with picture sleeve, can sell for $50.00.Their album “New Improved,” released on Philips Records in 1969, is worth up to $150.00 today.