1905 to 1912 Junior library and instructor literature series booklets and binder

These are as perfect as they could be. There is no writing on them like any other ones that you will find like this where the kids scribbled on them the corners are perfect and they look like they barely been opened from humidity the little metal brackets or Staples along The binding of the booklets has had some rust but they are just beautiful and the binder that holds them together is pretty spectacular. 10 booklets all together and apparently there were five volumes all together and these 10 books came partly in those other volumes only a couple of them are on the listed stories on the inside of the binder. I guess there should be four more binders if you have the complete set. These are going on 120 years old! So cool!
I think these booklets were given to the kids and then there maybe was a big book that the instructor would use based on some of the information that I have found.