Original 1st printing 17&1/8 x 22&1/8" concert poster for Ten Years After appearing with Procol Harum (with Robin Trower) at Sam Houston Coliseum in Houston, TX on 7/25/1970. 

 Designer unknown/not credited, extra-thin flat index stock poster is in good (B) condition; there is a semi-flattened center crease, along with a couple of soft horizontal roll bends traversing the image area, a tiny nip out of the top left margin, a couple of thin diagonal corner bends in the upper left/right corners and a light to moderate amount of handling wear/light creasing, otherwise fine.

 Very unique-looking 1970 concert poster from Houston featuring a pair of top-notch British headliners.