Original 1st printing 4&1/2 x 7" blank-reverse concert handbill/card for the Grateful Dead appearing with River at Springer's Ballroom in Gresham, OR on 1/16/1970.
Art by Jim Blashfield, image is featured in the Art of Rock on page 376 (plate 4.136).
Medium-thin flat index card stock handbill is in near mint (A-) condition; just a trace of surface wear (a tiny pin-prick spot below the "G" of "Grateful" and a pair of nearly-invisible soft stains on the reverse, otherwise it is a nearly-perfect specimen.
Neat little one-color Grateful Dead concert artifact from Oregon, check out the show HERE:
https://archive.org/details/gd70-01-16.sbd.popi.7111.sbeok.shnf/gd70-01-16d1t04.shn