Original 1st printing 13 x 20" concert poster for Ten Years After appearing with Procol Harum and Leon Russell at the Spectrum in Philadelphia, PA on 11/14/1970.

 Designer unknown/not credited (central image from the June 1918 issue of "McCall's" magazine), medium flat index front/glossy reverse stock poster is in mint/near mint to near mint (A/A- to A-) condition; a GORGEOUS example of this low-run late 1970 concert poster from Philadelphia.

 Very interesting lineup on this one!