This 1942 Walter J Black edition contains facsimiles from the Bodleian Manuscript of Omar Khayyam, an introduction by Gordon S. Haight, the first and second versions of the text, a vocabulary section, and more. It was published for the Classics Club.
I am not sure if the issue is with my copy in particular, or with the entire printing, but there are a lot of misordered sections. Like it’ll go from page 41 to 106-107 and then those 106-107 pages will be repeated. Lot of weirdness that’s hard to explain and follow. Like things are mixed up, repeated…yeah. Lot of problems so my order of the pages is, perhaps, not accurate to how it ought to be or in reality. It’s a mess.
Update 09/2022: Updated the layout, added more pictures, and tweaked page copy.