replacement pin?

[Daughterinlaw]

My 78 year old mother in law had her sorority pin stolen while recuperating at a rehab center after surgery. She was a member of the Iota chapter of Delta Sigma Epsilon (which merged with Delta Zeta in 1956) at (what was then) Northeast Missouri State Teachers College (now Truman State University.) Is there any way to replace this short of getting very lucky on EBay? Thanks.