I found a motor/generator thing at my school's storage. I was wondering if anyone could identify it
When you are trying to identify something, it is always a good idea to mention anything that is written on it. Better yet, use what is found as a search term in your own search. Also, ask someone where the item was found. Have you asked at your school: "Who is Dr. Clemenz? Is he available to explain this equipment?" Here is a link that shows the rotor that you found installed in a machine:

Link 1

The machine design is very unusual, but it appears to be capable of operating as a DC motor or generator with a commutator and also as a 3-phase AC, wound-rotor synchronous machine. There are also alternative rotors that can be possible be used with the same stator or with another stator.

Link 2

Here is a link to what appears to be the larger collection that contains these items.

Link 3

A larger collection that includes the above collection:

Link 4