Antique Wooden Baby High Chair

This is an old wooden baby high chair we were given. I was going to take it apart and tighten up some of the loose connections on the chair when I saw it had a label under the seat. It says " By Kroll Chgo ILL" and "1375 Q".

We just want to know the history of the chair as it is great and we still use it every single day three meals a day for our toddler.