Byzantine Lead Seals, 7th - 13th Centuries , Saint Nicolaos Ostiarios (The Doorman).
Obverse: Bust of St. Nicholas.He holds a pearl-adorned Bible in his left hand.His right hand is in a baptismal position.It is a pearl border with a halo and bishop's clothing.NICOLAOS inscription on right and left.
Reverse: Four lines of text starting with a prayer. TO CU DO LO NICOLAOS OSTIARIO ( The seal of NICOLAOS, the servant of God.)

Weight:16,8 gr
Diameter:28 mm