For Sale is a Lot of three (3) The Grateful Dead 1979 Shea's Buffalo New York Concert 2nd Print 1988 Postcards. Design by: Andrew Elias.  Concert Date: September 20,1979. This card is the authorized Second Printing, Psychedelic Solution, 1988 Grateful Dead Merchandising, P.S. 23 Second Printing.  The Postcards measure: approx. 5 1/16" x 7".  The Cards are beautiful, very clean, and graded MINT condition.  View the images provided.