5th-7th century AD. A substantial cross-shaped ecclesiastical stamp for communion bread (Prosphora or Blessed bread, antidoron), a monogram in Greek letters reading '??????' (of Peter) followed by the letters ??, ring handle soldered to back. See Wamser, L., Die Welt von Byzanz - Europas Östliches Erbe, München, 2004, items 725-726, for type and discussion.70 grams, 50mm (2"). Property of an Austrian private collector since the 1970s. The bigger stamps of bronze are generally known in the relevant literature as bread stamps. This applied to the bread which is consecrated during the Holy Liturgy and then it is given to the believers as Body of Christ (Prosphora) during the Holy Communion, as well as to the bread which is given as a present at the end of the Liturgy, as 'Blessed bread' or Antidoron. Usually, in the Post-Byzantine Age the true bread for the Holy Liturgy (Amnos or Prosphora) is squared or round, but in the Roman times various and different shapes of stamps were used for both breads. The monogram represents the name of the owner, probably the Presbyter using it.