Pair of original 1st printing and official promoter-issued 2nd printing 14 x 20" concert posters for Quicksilver Messenger Service appearing with John Hammond & His Screaming Nighthawks and Charles Lloyd at the Avalon Ballroom from 4/21-22/1967. 

 Art by Rick Griffin, image ("Goldrush") is # 58 in the Family Dog/Avalon series. 

 Medium flat index stock posters are both in mint/near mint to near mint (A/A- to A-) condition; maybe there's a soft handling ding or two hiding somewhere on one of the posters, but overall they are VERY clean. 

 Great-looking pair of 1967 Rick Griffin posters from the Avalon in tip-top shape!