This January 31, 2019 computer-vended stamp of Ireland depicts the Rinnegan Crucifixion Plaque. This 8th-9th century gilt bronze piece was constructed from repoussage-hammered bronze sheet. It depicts a Celtic-looking, beardless Christ flanked by two Roman soldiers. Angels flank the figure from above.
From the irisharchaelogy.ie website, "The presence of at least four small rivet holes suggest that the plaque was originally attached to an object, probably a book cover, a composite shrine or a wooden cross...the plaque may have been manufactured at the great Early Christian monastery at Clonmacnoise, which is located just 15 miles to the south of Rinnegan."