Occasional Observations of Traveling Technology Coach

I came across this label in a classroom book the other day. Anyone old enough to remember school textbooks probably remembers these labels affixed to the inside flap:

I remember that we defaced that label wth extreme prejudice, although I cannot recall the exact phrases we invariably used…Maybe something like State: Mental; Province (can’t recall); County: Jail; Parish (can’t recall), etc.

I am curious as to the origin of the label. Why these categories and not others, such as “school number” or “name?