Vintage Religious Medals

Vintage religious medal of St Margaret the Virgin- the medal is most likely silver plated. The medal measures approximately 7/8ths of an inch tall including the bail. It is marked Penin and something else on the bottom on the bottom, that I can't make out. She is the patron saint of childbirth, pregnant women, dying people, kidney disease, peasants, exiles, falsely accused people; Lowestoft, England; Queens' College, Cambridge; nurses; Sannat and Bormla, Malta. (taken from Wikipedia)