UNUSED GRATEFUL DEAD September 12, 1991 MADISON SQUARE GARDEN Concert Ticket Concert Ticket Measuring (Approx 6.5 Inches x 2 Inches) in Excellent Condition (UNUSED). SEE More ROCK 'N' ROLL CONCERT T-SHIRTS and Other SPORTS Memorabilia in My EBAY STORE. Click on EBAY STORES Logo after my USER ID to see my OTHER SPORTS MEMORABILIA AUCTIONS Specializing in BOSTON SPORTS sorted by Sport Categories!