The original/first print poster was printed on a relatively thin paper stock (identical to the original handbill), and measures approx.  14" X 22 1/4" (1/2" shorter than the reprint poster).  The purple in the background of this poster has a blue tinge to it (violet best describes this color).

The second print poster, an authorized reprint, was printed on a much thicker uncoated index stock.  This stock is similar to Fillmore originals printed in 1967 & 1968, which is when this poster would have been printed. This poster measures approx.  14" X 22 3/4", and the purple in the background of this poster is a lighter/pure purple.

The original blank back handbill was printed prior to the shows on the same paper stock as the original poster.  The colors of the handbill match the colors of the original poster as well.  This item measures approx.  4 1/2" X  7 1/2".

The postcard was printed on the same paper stock as the second print poster, and measures approx.  4 1/2" X 7 1/2".  It was printed at the same time as the second print posters, most likely in 1967.