Karel Teige's design for "dilo Marcela Prousta" and the prospectus

Praha, Odeon, 1929. In total 14 volumes were published (All the works by Marcel Proust translated into czech). All volumes have more or less the same design. Allthough i only have two volumes of the series, my aim isn't to get the whole series this will cost me a lot of money for books which all sort of look the same. What i do like is that i got the prospectus for the series also designed by Teige.
It seems like, over the last couple of years, czech avant-garde books are becoming cheaper. Except of course the really good stuff. I really can't explain this. Sometimes you can get something nice on ebay for under 20 dollars.