What kind of motor is this 14-lead beast?
You are right about groups 3 and 4. They are 3-phase, group 3 has a "Y" configuration and group 4 has a "delta" configuration. I can't make out the relationship with groups 1 and 2.

That "motor" looks more like a "synchro", which were typically wired in pairs. When you turned one, the other would follow, locked into synchronization by the three-phase windings. They were used a lot for military applications because of their ruggedness (they required no electronics). They died out 50 years ago with the evolution of servo motors.

There's not much you can do with it without another one.