Above is the envelope featuring the great artwork of Jack Kirby and Alfredo Alcala. This holds some dandy artwork. Here's a description from the website The Gerber Curse:
"In 1982, Dave and Deni Sim published a portfolio called "F.O.O.G.", which stood for "Friends Of Old Gerber," to help raise funds for Gerber's legal battle. The project, which was initiated without Gerber's knowledge (he says he hadn't even met Dave and Deni Sim), featured 10 black and white plates (11" x 14") by Bernie Wrightson, Mike Kaluta, Charles Vess, Wendi Pini, Jeff Jones, Barry Smith, Marshall Rogers, Frank Thorne, Gene Colan, and Dave Sim, which came in a Duke "Destroyer" Duck envelope illustrated by Kirby and Alcala."
Here's a link to the website where you can read a great deal more about Gerber's career and his lawsuit against Marvel for the rights on Howard the Duck.
Below are some scans of that artwork. I am lucky to have one of these portfolios. It's a real bit of comics history. Note that the scans are pretty much as is, and do not expand much when you click on them. Sorry about that.
Here's the cover of Destroyer Duck #1, the comic that paid for the lawsuit in some measure.
Here's a link to a Destroyer Duck cover gallery.