BYZANTINE LEAD SEAL. Kosmas. Vir illustris (Circa 550-650).
Obv: K / O / C / M A in cruciform arrangement; four stars around.
Rev: Retrograde S within large U; four stars around.
BLS 1359 var. (S not retrograde).
Condition: Good very fine, a fifth star engraved on the reverse.
Weight: 13.08 g.
Diameter: 24 mm.