Women's Vintage Estate 10K Yellow Gold and Pearls Alpha Iota Sorority Pin With Key & KM, 4.3g E2060

FOR SALE IS A VINTAGE ESTATE 10K YELLOW GOLD AND 13 PEARLS ALPHA IOTA SORORITY PIN. IN THE CENTER OF THE PIN IS A VERY SMALL RED GEMSTONE. ATTACHED BY CHAIN TO THE SORORITY PIN IS A "KEY" AND THE INITIALS "KM." THE KEY MAY REPRESENT SCHOLARSHIP, BUT THE "KM" IS A MYSTERY TO ME? ENGRAVED ON THE BACK OF THE PIN ARE THE INITIALS "DMM" AND AND DATE 3-2-66 AND "KM". THE PIN MEASURES 1/2" BY 1/2". ANY QUESTIONS PLEASE DO NOT HESITATE TO ASK. BE SURE TO CHECK OUT SOME OF OUR OTHER GREAT ITEMS UP FOR SALE. THANK YOU.