1982 Cobra: The Enemy v1 (straight-arm)
Kirk Bozigian (G.I. Joe Product Manager) and Ron Rudat (R&D Figure Designer) discuss how the idea for a ruthless terrorist organization known as Cobra came to be, designing the figures, and the wildly successful Cobra Commander promotion.
All sixteen 1982 straight-arm figures were re-released in 1983 with updated swivel-arm articulation. The 1982 straight-arm figures are known as v1, while the 1983 swivel-arm figures are known as v1.5, since they aren't entirely new figures.