LOOKING FOR THE NEXT BIG THING TO ADD TO YOUR MEMORABILIA COLLECTION? WELL THIS IS IT! LED ZEPPELIN unused concert ticket dated 11-13-1980 from the 1980 Chicago Stadium cancelled concerts-due to John Bonham's death. This ticket has been encapsulated by PSA/DNA for long-term preservation of the ticket, as well as authenticated by them as being an authentic signature. PSA/DNA as you may already know, is one of the largest and must reputable autograph authentication companies in the industry today! This is a must-have item for your man cave, game room lady lair or office!