I asked a question recently about completing my set of "Les Integrales Jules Verne".
Well, I began finding the missing volumes , but made a discovery.
Turns out there was also a set with dust jackets I did not know about. Also published by Hachette, under a series (?) Grands Romans - Grands Recits (vs Grand Oeuvres)
The volume I got has no end papers (they are not present at the beginning or rear), so never existed! Under the dustjacket the cover is white with red lettering on the spine.
Just an interesting find for me! Enjoy.