Selling these for a friend from the estate of her late husband.  All appear to be tiny lapel  or hat  tac pins related to the Sigma Phi Epsilon Fraternity.  Two are red enameled EYYUN pins, one is a goldstone crest pin, the other a gold tone initials pin.    As you can see, they are all under 1/2 inch.... really small.  No markings on the backs, all are gold tone with silver tone tac backs.  All are in excellent vintage condition