Gold-plated brass reliquary in the form of so-called symbol. "Fish" - ICHTYS:
ΙΗΣΟΥΣ (Iesous) - Jesus
ΧΡΙΣΤΟΣ (Christós) - Christ
ΘΕΟΥ (theou) - God
ΥΙΟΣ (Hyiós) - SynΣΩΤΗΡ (Soter) - Savior.
The reliquary is a vessel of worship in any shape, usually in the form of a cross or a monstrance used to store the remains - relics. Usually made of precious metal, usually brass or ivory, often covered with gold or silver and decorated with precious stones or paintings.