Original 1st printing 14&7/8 x 22&3/8" silkscreen cardboard concert poster for Mountain appearing with Black Sabbath at the Seattle Center Arena on 2/26/1971.

 Designer unknown/not credited (poster printed by Washington Poster Co.), extra-thick cardboard stock silkscreen poster (printed with extra-bright day-glo florescent ink) is in very good (B/B+) condition; there are tack hole in the top center margin and in the top left/right corner tips, along with a bit of minor moisture warping along the bottom margin (along with a slight stain on the reverse-side bottom margin), a series of thin diagonal hairline bends criss-crossing the upper right quadrant/corner of the image area a trace of light surface wear and a tape pull and a handwritten name (in blue ballpoint pen) on the reverse side, otherwise fine.

 ABSOLUTELY KILLER 1971 Mountain/Sabbath cardboard concert poster from the Pacific Northwest, I haven't seen one of these in over 15 years!