The 1st printing poster displays blues, greens, and reds which vary throughout the run. On the original, there are two small marks which distinguish it from the reprints. The first is a small dark blue/green dot located in the lower left blue background. It is 2 1/2" above the top right corner of the "V" in "Avalon". The second marking, is a white dot located just below the beginning of the second "L" in the green word "Miller". It is on plain, matte stock and measures 14" x 20". It was printed before the concert.

The 2nd printing A presents a darker blue background, as well as lighter green and pink lettering. There is some inking variation throughout the run on uncoated paper stock. This printing lacks the two markings described in the 1st printing. It measures 13 7/8" x 19 15/16".

The 2nd printing B presents coloring similar to the 2nd printing A, but is on coated and highly glossy paper stock. It measures 13 7/8" x 19 15/16".

The 2nd printing C presents coloring similar to the 1st printing, but lacks the two dots described above. The poster is printed on uncoated paper stock. It measures 13 7/8" x 19 15/16".

Born in Spain, Victor Moscoso was the first of the rock poster artists with serious academic training and experience. At the Avalon Ballroom in San Francisco, Moscoso saw rock posters and decided that he could "make some money doing posters for those guys." In 1966, he began designing posters for the Avalon Ballroom; and under his own imprint, Neon Rose, a series for the Matrix, a San Francisco nightclub. Moscoso's style is most notable for its visual intensity, which was obtained by manipulating form and color to create optical effects. He used clashing, vibrating colors and deliberately illegible psychedelic lettering to demand attention.