[navane]

Originally Posted by Cheerio

Is it possible the Phi Beta Epsilon letters could be read as Beta Phi Epsilon?

Yes. I was working on that angle too with no luck.

Originally Posted by RoLiki

The link was to my Microsoft OneDrive

How about this: https://imgur.com/a/mB2XrfK

Do you have pictures of the backs of the pins? That could help shake loose some clues.