Bill Grahams Fillmore West concert postcards.  Wes Wilson artist.  BG 150 Type B. 12/19/1968. Bands were Santana, Grass Roots, Pacific Gas & Electric.   BG 151 Type B.  12/26-29/1968.  Bands were Steve Miller Band, Sly and the Family Stone, Pogo.  Postcards are 4 1/2” by 7”.