Uncommoon to see an Affe with RZM tag and name tag I would say.
The Segeltuch ones are not as eye catching as the full fur ones.
RZM tags in these are not common and the name tag makes it especially nice.
I can not comment on the Fliegertechnische Vorschule.
One needs to look up the name of the guy to confirm that I guess.
Whether the term Militärschüler was only used there I do not know.