Original 1st printing 20 x 30" concert poster for Mountain (featuring Leslie West) appearing with Wishbone Ash and Gordon Haskell at the Rainbow Theater in London, England from 11/12-13/1971.

 Artist unknown/not credited, medium-thin flat index (vellum "fly posting" reverse) stock poster is in excellent (B+) condition; there are a series of thin creases and a 3/4" tear in the upper left margin, a few light handling/edge dings here and there, a slight soft smudge on the "a" of "Rainbow", a couple of very thin horizontal bends extending from the right margin into the center of the image and a series of thin light stress creases scattered around the image area, otherwise fine.

 Very cool-looking early-'70's concert poster from one of London's most revered music halls, this was one of the first shows held at the newly-rechristened venue (formerly the Finsbury Park Astoria, where Jimi Hendrix famously burned his guitar onstage in 1967).