I intend to focus on 70's prog albums.
The link to the group is:
Rare progressive rock bands & albums
I'm ready to share all what I have, but not at the same time, of course. :-)
I've uploaded 2 albums currently, you can see them at the forum.
My collection of the lesser known prog albums is as such:
Ahvak - Ahvak
Amon Duul II - Phallus Dei
Amon Duul II - Yeti
Ange - Le Cimetiere Des Arlequins
Ange - Au Dela Du Delire
Anglagard - Hybris
Anglagard - Epilog
Aphrodite's Child - 666
Il Balletto di Bronzo - Ys
Banco del Mutuo Soccorso - Banco del mutuo soccorso
Banco del mutuo soccorso - Darwin!
Banco del mutuo soccorso - Io sono nato libero