Via Starwars.com:

The vintage Star Wars action figures are dear childhood friends of many (older) fans. Even E.T. was introduced to some of them when he visited our planet. Needless to say, vintage action figures are still collected today on their original card and also in loose condition. In this article, I’ll shed some light on the main variations of Kenner’s classic toys.

It’s important to understand that nearly all vintage figures have variations that range from obvious to minor ones. Fans and collectors are still discussing the origin and the validity of certain less obvious differences today. These variations sometimes occurred when figures were produced in a different country or at another factory. For example, most Mexican Lili Ledy figures differ from the ones offered in North America and in Europe (the Lili Ledy figures are left out of this article because they’re nearly all different).

Most of the major variations are found in the Star Wars and The Empire Strikes Back lineups. The Return of the Jedi collection certainly has its proper variations, but not as many as the previous waves.

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