Reliquary theca with relics of Saint Antellus, Martyr

Oval  glass-fronted brass theca housing very large (27 x 15 mm!) first-class ex ossibus relic of Saint Antellus, Martyr.The relic is affixed to a purple background and titled on a handwritten cedula label as S. Antelli M.  On the back, under protective cap, the theca is secured with a perfectly preserved red wax seal with a coat of arms of a Catholic bishop.