A silver ring with D-section hoop, elliptical in plan; raised oval bezel set with a jasper intaglio engraved with inverted Greek inscription 'ΙΧθΥC' ('ichthys, meaning 'fish'), a Greek acronym for 'Jesus Christ, Son of God'. 9.17 grams, 21.95mm overall, 18.64x16.45mm internal diameter (approximate size British O, USA 7, Europe 14.98, Japan 14) (3/4"). Very fine condition.