1983 Destro: Enemy Weapons Supplier
Above: retail file card. Below: uncut red back mail away file card. File cards courtesy of Ryan Ihnken.
Earlier versions of Destro's file card featured a G.I.Joe logo. Later versions (seen below) were corrected to include a Cobra logo.
Kirk Bozigian (G.I. Joe Product Manager) and Ron Rudat (R&D Figure Designer) discuss how the man in an iron mask came to life.