Pair of original 1st printing 29 x 23" printer's proof uncut sheets (cyan and c/y/m color tests), each with an uncut pair of concert posters for the Byrds appearing with Fleetwood Mac (with Peter Green) and John Hammond at the Fillmore West and from 1/2-4/1970 and Chicago appearing with the Guess Who and Seals & Crofts at the Fillmore West from 1/8-11/1970, all shows held in San Francisco, CA.

 Art by David Singer, images are #'s 210 (Byrds) and 211 (Chicago) in the Bill Graham/Fillmore series.

 Medium glossy coated index stock proof sheets are both in near mint to excellent (A-/B+ to B+) condition; aside from a couple of scattered soft pinch dings/thin creases here and there, a tiny 1/2" tear on the bottom margin of the 3-color sheet, a couple of tiny edge/corner-tip creases and a touch of curl to the edges, they are both in REALLY nice shape.

 Very unique set of 1970 Fillmore West progressive proof sheets- the 3-color one looks especially nifty.