Pledge Pin/Badge?

PLEASE HELP! I have researched for days on this pin and I can't find ANYTHING!! I looked through pages of fraternity and sorority history ect. and another lady has one similar as well except hers is a pin back as mine is a Brooch style pin in back. She also has NO idea anything about it and the only thought she had was that it might be masonic? I then researched all about that and couldn't find anything that made me feel as though they were connected at all. If you have any information i would truly appreciate it! Thank you!