On November 24, 1993, there was a signing at Golden Apple Comics in Los Angeles, where members of the Bongo Comics group (Steve Vance, Cindy Vance, Bill Morrison, & Matt Groening) autographed 500 copies of Simpsons Comics #1 and gave out a special Certificate of Authenticity (COA) with them. Each COA was individually numbered and had a raised seal stamped onto it.
