My collection of catalogues of works by contemporary composers

In the 1990s, I visited regularly the Musicora music fair in Paris. Every year, I collected all composer's catalogue of works I could find there, from publishers or Music information centers. I also wrote to several companies to receive more by mail.
Unfortunately, since the internet has appeared, it is more difficult to receive these catalogues in a paper version. Most of them can be downloaded.

I now have about 835 different catalogues of 650 different composers. I have scanned their covers and uploaded them to a flickr folder :
https://www.flickr.com/photos/22297671@N03/sets/72157648887120567/

The last four digits of the file name gives the date of publication of the catalogue. If the number is 0000, it means no date is available.

Among the publishers are : Alphonse Leduc, Bärenreiter, Boosey & Hawkes, Breitkopf and Härtel, Durand, Edition Peters, Edizioni Suvini Zerboni (ESZ), G. Schirmer, Gérard Billaudot, Ricordi, Salabert, Schott Mainz, Sikorski, Universal Edition, Wilhelm Hansen, Finnish, Norwegian and Swedish Music Information Centers.