the link is very long and simply stated just go to Ebay--search for fraternity and sorority pins...then you will find they now have two groups to bid on:
1)this is the one I mentioned "Vintage 14ktGoldFraternity Sorority Pins SAE More" has one more day in the bidding; beautiful ZTA badge, SAE badge, others including the one that should be Pi Phi...but at close look it seems to say Alpha Beta Phi....at least that is what they call it; each of the badges has nice gems-emeralds, diamonds etc., and some supposedly have the owners initials on the back.
2)the other group is listed as: 9 Fraternity-sorority Pins 10k Collection Scrap Gold/two lavaliers
ne is ADPi and the other is Alpha Sigma Pi; some chapter guards; a Phi Mu badge; a Gamma Nu badge; and a badge which resembles what I think is either a Lambda Chi badge or maybe something along those lines but very elegant regardless of the group.
good luck!!