Original 1st printing 15&3/8 x 22&7/8" concert poster for the Quaker City Rock Festival, a one-day show held at the Spectrum in Philadelphia, PA on 10/23/1970.

 Performers listed include: Grand Funk Railroad, Rod Stewart and the (Small) Faces, Eric Burdon & War and Elizabeth.

 Art by Spencer Zahn, medium-thick glossy-coated index stock poster is in SUPERB near mint (A-) condition; aside from the slightest whisper of surface wear, this example is just about as sharp/crisp as they come.

 Uncommon/hard-to-find 1970 1st printing edition of this poster (it was reprinted by Electric Factory promoter Larry Magid in the 1990's), the colors are much brighter on this version.