Original 1st printing 11 x 14&7/8" "tour blank" concert poster for Quicksilver Messenger Service.
Designer unknown/not credited, image (filled in with information from the 4/30/1966 (BG 4) show at the Fillmore Auditorium) is featured in the Art of Rock book on page 145 (plate 2.45). (*This is an unused/no-info blank)
Thick flat index stock poster is in BEAUTIFUL near mint to excellent (A-/B+ to B+) condition; there are a couple of tiny thin hairline surface stains in the lower portion of the image area (each about 3"), a thin 1" diagonal bend in the lower left corner tip, a soft discoloration/stain just above the "s" of "Quicksilver", a thin stress bend/pinch ding or two hiding within the image area, otherwise fine.
VERY EARLY/hard-to-find Quicksilver item from the earliest days of the the band's existence.