3 Part Sheets of Vintage Silver Fraternal Emblems

For American college students presumably.
There is one whole sheet and 1 with 2 missing and 1 with 4 missing.
Most of the emblems have stones missing and a few have lost the press on pin backs.
It says they are sterling silver on the card.
All the "emblems"are the same - looks like a compass.
The cards have stands on the back - so they can stand up.