Color 10.5 x 14.5 poster for a Jefferson Airplane concert, signed in blue felt tip by Marty Balin, Paul Kantner, Jorma Kaukonen, David Freidberg and Jack Cassady. Triple matted with a felt tip signature of Grace Slick on an off-white card, to an overall size of 18 x 24. In fine condition. COA Roger Epperson/PSA/DNA and R&R COA.
