Original 1st printing 13&7/8 x 20" concert poster for the (Amazing) Charlatans appearing with the Mystery Trend, Slaxon "the Slight-of Head Magician" and Wanda & Her Birds (a trained bird act) at California Hall in San Francisco, CA on 4/16/1967.
Art by Michael Ferguson and Rick Griffin, image is featured in the Art of Rock book on page 171 (plate 2.131).
Medium flat index stock poster is in FANTASTIC near mint (B+ to B+/A-) condition; aside from a touch of light handling wear, a small bend in the top left corner and a well-camouflaged stress bend or two, this example is pretty much as clean as they come.
GREAT-looking example of this whimsical early-'67 Charlatans poster from Cal Hall.