Your jpeg file exceeds the allowed 1000 KB file size. Can you save it in a compressed file format? I’d like to see it.
Is this a self-published book?
This is a question for the Braille Formats forum but we consulted the moderator for the best answer: There is no specific rule for what to do when the print book doesn’t list a publisher anywhere. It’s recommended to just leave the publisher’s name blank in that section of the title page, adding that you should not make a “guess.”
You should look at Braille Formats §2.3.6 Publisher and Copyright Segment. But it would be great if you would try and send an image of the copyright page. It would help if we knew what was missing in the front of the book, such as book title, author’s name, publisher’s name and city, copyright date and owner, publisher’s website, ISBN(s), printing history?