That reminds me the exercise books I used as a kid in school, where they were just a very simple stapled construction with a thin cardboard cover. Although looking at your photos it does appear that the book is sewn rather than stapled.
You should be able to scratch build one of these pretty easily: The template for each page would be easy to make, it looks like the grid is only printed on one side of the page, you could draw/trace the elephants, pencil in some notes to the grid and stamp a date on the top in blue ink.
Also, have you looked in the paper props section to see if anyone's made the template or done any other work on this already?That reminds me the exercise books I used as a kid in school, where they were just a very simple stapled construction with a thin cardboard cover. Although looking at your photos it does appear that the book is sewn rather than stapled.
You should be able to scratch build one of these pretty easily: The template for each page would be easy to make, it looks like the grid is only printed on one side of the page, you could draw/trace the elephants, pencil in some notes to the grid and stamp a date on the top in blue ink.
Also, have you looked in the paper props section to see if anyone's made the template or done any other work on this already?