Mystery book

This is a book that my grandma had and I had never seen prior to her passing. I have no idea where it could've come from or if she even knew what it was. She was an antique dealer. It's obviously very old but not hand written although not all of the pages are uniform in size or shade of paper. It has regular numbers on every other page that begin towards the the front of the book but not in the front. They read from there to the front and pick up again in the back of the book. It's obviously in a different language but nobody can identify it. I've even had it to a book appraiser to see if he could help me but he didn't know either. It has from what I can find a total of three pictures in it, of which I'm posting two. Any help with this would be greatly appreciated. Even if it's just identifying the language. This seems to be a real stumper.