The Pee-Chee was standard equipment all through my schooling in the 1960s and early 1970s. The manila card stock folder never varied in design from year to year.
In a drawing I made while bored in the back row in Mr. Heay's 7th grade home room at Washington Jr. High in Olympia, Washington, you can see I visually documented the ever-present Pee-Chee in the classroom landscape.
I'm not sure how many years I used the same Pee-Chee, but it was at least three since I recall I had the thing all the way through the years at Olympia High School (grades 10-12 in those days). It might even date back to junior high, but I can't recall.
As you can see, Pee-Chees were designed to be disposable. The original design had been completely obliterated within a very short time. I retired the thing when I began college.
