Oval glass-fronted silvered metal reliquary theca housing first-class ex ossibus (of the bone) relic of Saint Sebastian. The theca is decorated with twisted wire ornamentation and the relic is identified on a horseshoe-shaped manuscript cedula label as S. Sebastiani M.(Saint Sebastian, Martyr). On the best, the theca is secured by a seal of red Spanish wax with an imprint of a coat of arms of an unidentified Roman Catholic Archbishop.
Saint Sebastian († c. 288) was an early Christian saint and martyr. According to Christian belief, he was killed during the Roman emperor Diocletian's persecution of Christians. He is commonly depicted in art and literature tied to a post or tree and shot with arrows. Patron of Soldiers, plague-stricken, archers, holy Christian death, athletes, Negombo, and Roman Catholic Diocese of Tarlac.