Original 1st printing 21&7/8 x 16&7/8" double-uncut 1967 Oracle Co-Op poster(s), "the Oracle" and "Lucifer Rising (a film by Kenneth Anger)", featuring a pair of designs by the one and only Rick Griffin.
Thin flat "butcher paper" stock poster is in good/decent (B/B- to B-) condition; a fair amount of handling/creasing, a bit of moisture warping and a few light high-water stains in the center of the image, a semi-flattened vertical center fold (with a tiny hole in the center), a large 6" diagonal bend in the lower left corner and a few scattered surface marks/scuffs/splatter marks, otherwise fine.
As with a number of the Oracle Co-Op posters, the fragility of the paper stock accepts damage fairly easily, so finding them intact can be a challenge. This example isn't without a few issues here and there, but it's definitely one of the hardest-to-find early Griffin items out there.
A really neat example of two of Griffin's earliest San Francisco psychedelic posters on a single sheet.