Original 1st printing 8&1/2 x 11" double-sided concert flyer for the Grateful Dead appearing with Moby Grape and the Steve Miller Blues Band at the Avalon Ballroom in San Francisco, CA from 12/23-24/1966.
Art by Victor Moscoso, image is # 40 in the Family Dog/Avalon series. (*This version is designated "OHB-D" in the Eric King guide and was distributed in issue #12 (December 1966) of Greg Shaw's "Mojo Navigator")
Thin flat stock flyer is in excellent (B+) condition; this example has a couple of thin diagonal pressure crease in the lower right corner tip, along with a couple of VERY thin vertical stress bends going through "Dance", a couple of soft thin bends hiding around the outer margin area, a tiny 1/4" diagonal bend in the upper right corner and a few soft handling dings scattered around the image area, otherwise fine.
REALLY nice-looking example of the Mojo-backed FD 40 flyer, not an easy one to locate.