1966-68; A) Muddy Waters Blues Band, Quicksilver Messenger Service, Andrew Staples. Designed by Wes Wilson. 22-1/4″ x 13-3/4″; near mint condition. B) Butterfield Blues Band, (Rahsaan) Roland Kirk Quartet, New Salvation Army Band, Mount Rushmore. Designed by Bonnie MacLean. 21″ x 14′; near mint condition. C) Mothers of Invention (Frank Zappa), James Cotton Blues Band, Joshua Light Show. Designed by Helen Hirsh. 22″ x 14; near mint condition. D) Jefferson Airplane; Trips Festival. Designed by Creative Lithograph Co. 19-3/4″ x 14-1/4″; near mint condition with minor discolorations. Each housed in plastic sleeve. Provenance: From a London Collection. These posters were originally sent to the Rainbow Theatre in London as part of a reciprocal poster exchange program with Bill Graham. They were collected by a former staff member of the Rainbow Theatre.