I am looking for the book or documentation that "The Box" by Lascelles Abercrombie was printed or published in.
Any book at all, or first published? If the former, you could try book dealers such as the ones listed below to see if it appears in therein:
The British Library also has a search page, but the last time I linked it, those clicking were sent to a login page, so I will just provide the search page. Type in Lascelles Abercrombie, along with 'exact phrase' for all Abercrombie links, then pop over to the building that houses the book for a quick look-see. Assuming you are in London, that is. You are not in London, you say? Oh, well.