No idea what these are like, but there seems to be a lot of them.
Seeing their sheer numbers, and the fact that Fratelli Fabbri are more known for their book publishing rather than music, these seem like records with narration and background music - a sort of 'audio documentary' or possibly audio book. Like a lot of Italian documentaries, possibly scored with library cues, though!
edit: ooooh, lookie lookie - here's an interesting little overview and rips of a good handful of the records:
thx!://complottilunari.blogspot.com/2013/03/cimeli-spaziali-luomo-e-lo-spazio.html
