I have found this piece of information:https://www.key-notes.com/brahms-51-exercises.htmlThat implies that there are no fingerings given in the book so I think it is a pity. I would not like to invest extra time to invent fingerings for 51 exercises!
Michael, I haven't heard about this book, or at least I am not recalling anything. Are they good exercises? I just remember reading here and there about Brahms exercises that is why I was curious to get to know more.