[Jon Stratis]

As a good rule of thumb, if there is no model number on the motor and you don't know what it is, it's probably not legal.

For that motor, it's fairly easy to go through the legal list to see it's not legal:
CIM? nope.
Banebots? Nope.
Andymark? Nope.
BAG / MiniCIM? Nope.
Window, Door, Wiper, Seat? Probably not, as it doesn't fit the normal form factor of those motors.
Bosch? Nope.
Snow Blower? Nope.

Sometimes the easiest way is to run through the list and see if it falls into any specific category on there.

But as others have said, we can identify it as a globe motor from way back in the day, and thus know that it is no longer legal. They haven't been legal for a very long time, but they still manage to crop up on robots from time to time, even on teams that never would have gotten one in their kit of parts!