Oval glass-fronted silvered silver pendant reliquary theca housing the first-class ex ossibus (of the bone) relic of Saint Cyriaca, Martyr. The relics are affixed to a gilt paper starburst on a salmon-colored silk ground, surrounded by silver wire ornamentation, and identified in Latin on a fancy manuscript cedula label as Ex Ossibus S. Cyriacae V. & M. (of the bone of Saint Cyriaca, Virgin & Martyr). On the back, the theca is secured with a seal of red Spanish wax bearing an imprint of a coat of arms of Fr. Francesco Maria Ginori (†1775), Bishop of Fiesole, Italy (1736–1775).
Saint Cyriaca († 249) was a wealthy Roman widow who sheltered persecuted Christians. St. Lawrence used her home in Rome to give food to the poor. After his death, she brought his remains to a catacomb that had been dug into a hill on land she owned. This is now the site of San Lorenzo fuori le mura. Cyriaca suffered martyrdom by being scourged to death for her faith. Her Feast Day is commemorated on August 21.