Acording to some reviews on video and webs like rebelscum
the tvc classic Boba is slighty different from the vintage, mostly on the disposition
of the jacket under the chest armor, the squares on the shoulders and size.
I look the photos of the very early Boba Fett from 1978 on theswca
the article said that this figure got vintage stormie´s arms but painted in Boba style. This figure depicts the firing misile too.
Something I think, this early Boba Fett is the slimmest Boba in the Kenner Hasbro line. I don´t know if this toy was distributed by the mail offer in 1978 or was immediately rčplaced by the current Boba we saw on the 1978
star wars cardback.