The ISBN is there on the bookmark, it's just hard to see in this low-res image. It's right below the website address in the black bar at the bottom. It's also on the poster, the first line in the block of text at the lower half of the black sidebar.
As for various types, we have four versions of each: letter and ledger size for North America, A4 and B4 for Europe & Asia.
The letter and A4 bookmark files have 5 bookmarks, the ledger and B4 bookmark files have 10 bookmarks. There are cutlines in all the bookmark files.
As for greyscale, they'll come out looking fine on a good quality black and white printer/copier using photo/picture settings.