The Rubaiyat of Omar Khayyam:
1952 Garden City Books Edmund Dulac Edition

The pages that have the illustrations are shiny and of different stock than the rest of the pages.

I did once find a copy of a book titled India’s Love Lyrics that had the same exact same cover design as this edition. I believe it was Garden City, but I do not have it on hand to check. So the cover itself, the design of the green and what not, is not unique.

Update 11/2020: Updated the layout and added the press info.