I think its a Ripmax Bullet 30. I believe they had a lot of poles, 24 is the number that comes to mind, but it may have been 12. They were a highly rated fast electric motor back in the mid 70's. I used to have 1 in a Nippy hull running on 18 cells. They were rated up to 24 volt.
Mind you I could be totally wrong, its many a moon since I last saw one.
Glenn