Does the box say Fabbri-Orbis on it? If so, they licensed a number of decks from LoS (or they were printed in conjunction with LoS - LeFanu would know better) and made slight changes to the card dimensions if memory serves.
Thanks for the vote of confidence
But of those LoS/Fabbri/Orbis editions which came with the History of Tarot series (circa 2001), The Tarot of the Origins was not one of the issued decks. It was only issued as a reduced Oracle
This deck was one of LoS' first editions and I think they started publishing in about 1987 so there are quite a few permutations you can get. I think the blue backed one you have is just a French edition - I'm 99% sure it's legitimate. I know I haven't seen it up close but I don't think there's a history of bootlegged LoS decks - you'd fake something like the Gilded or baba if you wanted to go into tarot piracy. And there are always different editions of LoS decks anyway - French versions, Dutch versions, German versions etc etc . The graphics of the titles (and order of the languages) are different to the more recent one. I think this deck went out of print a bit before Riccardo started this thread in 2002 - I think he was sort of mourning its passing. Maybe late 90s?
Funny - the growing popularity of this deck really has convinced me that a deck has to go OOP to be truly desirable. It amuses me this need to have decks once they become difficult to find. Scarcity can suddenly make an overlooked deck extraordinarily readable. The human mind is a funny thing.