1906-1907 Clinton School Souvenir Booklet

Following the lead of some train enthusiasts in a Facebook group I belong to, I decided to poke around on eBay recently to see if I could find any old photos of things and places I've been researching that I haven't been able to find elsewhere online. Unbelievably, one of the very first items I found was a souvenir booklet for Clinton School from the 1906-1907 school year that listed my great-grandpa Phillip Betters among the pupils and his dad, Austin Betters, and brother-in-law, Daniel McQuarrie, as trustees. Unfortunately, no photos of the students are included, but it does feature a photo of the teacher on the cover. The eBay listing called this thing a "cabinet card" (a thin photograph mounted on a card that usually had an embossed design), but this was more of a booklet than a photograph. With only two pages plus a front and back cover, even calling it a "booklet" is generous. I had never seen anything like it. I didn't even know what to call it. W...