Original 1st printing 8&1/2 x 11" concert flyer for the Steve Miller (Blues) Band appearing from 1/10-15/1967 and Big Brother & the Holding Company (featuring Janis Joplin) appearing from 1/17-22/1967, both engagements held at the Matrix in San Francisco, CA. 

 Artist unknown/not credited, image corresponds with Victor Moscoso's Neon Rose #2 and # 3 images; this image directly references the abandonment of the club's liquor license to accommodate underage patrons. 

Thin flat stock flyer is in very good to excellent (B/B+ to B+) condition; there is a bit of light sutface dirt/smudging and a few tiny surface scuffs here and there, along with a few light vertical bends along the right margin, a 2" thin diagonal bend in the lower right corner and a minor amount of handling, otherwise it is a SUPERB example of this HIGHLY uncommon Matrix flyer from early-'67.