Original 1st printing 11&1/4 x 1773/8" concert poster for Christopher Tree's Spontaneous Sound (a one-man percussion show featuring a variety of cymbals, Chinese gongs and bells) appearing at the First Unitarian Church in San Francisco, CA on 3/27/1967.

 Designer unknown, medium-thick semi-textured index stock poster is in very good (B/B+) condition; a set of tack holes (all four corners,), a semi-flattened 7" diagonal bend in the lower left corner, a few stray surface smudges and tiny pin-prick stains, a 1/8" tear in the left center margin, a few semi-soft bends and handling dings scattered around the image area, otherwise fine. 

 Very interesting oddball San Francisco world-music event poster from an unusual promoter ("Medical Committee for Human Rights").