PB Byzantine seal of Constantine (AD 7th century)
Obv: An eagle with outspread wings. Above between the wings, a cruciform invocative monogram (type V): Θεοτόκε βοήθει. Wreath border.
Rev: Cruciform monogram: Κωνσταντίνου. Wreath border.
Translation: Mother of God, lend Thy aid. (Seal of) Constantine.
Similar seal, Dumbarton Oaks online, BZS.1951.31.5.72.
Weight: 11.32 g.
Diameter: 20.08 mm.