British Steelbook edition. The metal case came inside a plastic slipcase. A DLC sheet with a code for the Elza costume pack was included, as advertised by the sticker on the front. It did not come with a manual.
1. Front of case inside slipcover with sticker
2. Back of case inside slipcover
3. Front of case
4. Back of case
Thanks to eBay members paynesam (image 1), 123amatruda (image 2), and mitcheg3k (images 3-5).