Byzantine Iconographic PB Seal in the name of Mark. Circa 6th - 7th centuries AD. Bust of the Mother of God facing, holding the medallion of Christ before her; cross on either side; all within border of dots / Cruciform monogram of MAPKOY within border of dots. Translation: (Seal of) Mark. Unpublished in the standard references. 9.78g, 22mm, 12h.
Condition as seen.