Bill Graham never really considered himself a rock and roll fan. His real love was the Latin music he'd grown up listening and dancing to in his old neighborhood in New York City. BG171 advertised shows Graham could really enjoy: San Francisco favorites Jefferson Airplane and the Grateful Dead on the same bill with Cuban percussionist/bandleader Mongo Santamaria. Randy Tuten was able to work some appropriate transportation imagery into the artwork. The 1st printing postcard measures 4 5/8" x 7" and has a medium blue background. It was printed before the concert.