Original felt tip sketch of a running Bongo from Groening’s strip “Life in Hell” on an off-white 11 x 14 card, signed and inscribed, “Yo, Vinnie!! Your pal, Matt Groening, 12/12/89.” Hardcore pop culture aficionados will be interested to know that Groening’s most iconic creation, the television series The Simpsons, premiered just five days later, on December 17. A few minor scuffs, otherwise fine, clean condition. R&R COA.