Original 1st printing 8&1/2 x 11" concert flyer for Quicksilver Messenger Service appearing with A.B. Skhy and Beggar's Opera at the Contra Costa Fairgrounds in Antioch, CA on 4/17/1970. 
 
 Art by John Hardham, thin flat stock flyer is in near mint to excellent (A-/B+ to B+) condition; just a whisper of handling wear and a few tiny edge dings scattered around the outer margin area, otherwise it is a mostly-clean example of this low-run 1970 QMS concert artifact from Contra Costa county (this was supposedly John Cipollina's last show until the original band reformed in the mid-'70's).