Grateful Dead at Shea's Buffalo 1979

Second printing postcard.  The poster, by Andrew Elias, was produced for a grateful dead concert.  the poster text says:  buff state student union board presents an extraordinary event the grateful dead 20 January 1979 shea's buffalo.   This postcard, with postcard back, includes the marginal note " c 1988 Grateful Dead Merchandising P.S.23 second printing design by Andrew Elias" 5" x 7" near mint condition