Original 1st printing 19&1/2 x 27&1/2" concert poster for Quicksilver Messenger Service appearing with Electric Flag (with Mike Bloomfield and Buddy Miles) and Charlie Musselwhite at the Shrine Exposition Hall in Los Angeles, CA from 4/12-13/1968.
 
 Design by R. Ramirez, medium-thick flat vellum stock poster is in excellent (B+) condition; there is a slight curl to the paper, along with a series of light pressure/handling creases along the top margin, a tiny nip out of the top right corner tip, a few well-camouflaged handling/stress bends hiding within the imagre area and a touch of toning on the reverse, otherwise fine.

 EXTRA-COOL mid-'68 Quicksilver/Electric Flag poster from Southern California with a great design.