Original 1st printing 13&3/4 x 19&7/8" concert poster for the Youngbloods appearing with the Sparrow (an early precursor to Steppenwolf) and the Sons of Champlin at the Avalon Ballroom in San Francisco, CA from 12/16-17/1966.

 Art by Stanley Mouse and Alton Kelley, image is # 39 in the Family Dog/Avalon series.

 Medium-thick flat vellum stock poster is in STUNNING mint/near mint to near mint (A/A- to A-) condition; the ONLY real issue I can see is a nearly-invisible thin vertical stress crease at about 8:00 in the center of the oval (it can be seen more clearly on the reverse) and there may be a stray soft pinch ding or two hiding within the image area, but overall this example is just about as clean as they come.

 An absolutely GORGEOUS specimen of the 1st printing FD 39!