The first regular British edition came in a red case with a chapter index sheet and a Bulletproof Monk advertisement. It was later reprinted with the same barcode, but the chapter index was printed on the reverse of the cover inlay, and it came in a clear case.
4. Index sheet
Thanks to eBay members turner.j44 (images 1-2), dandersonsuk (images 3-4), and gamer_station (image 5).