Vintage RGHS '71 tiny pin gold tone brooch high school

Tiny vintage RGHS pin with 71 attached by a little chain Gold tone metal I think the letters may stand for the initials of a high school, or maybe an honor society? It's in good preowned conditon, normal minor wear and some dark patina to the metal but nothing major. See photo next to quarter for size reference. Ships fast! ZEBA828NJ2H5V Rio Grand rocky grove alphabet letters numbers jewelry initial monogram