Byzantine Iconographic PB Seal in the name of Thomas Kosmas. Circa 6th - 8th centuries AD. Humped bull advancing to left / ΘѠΜ ΑCΚΟ CΜΑ in three lines. Unpublished in the standard references. 4.35g, 14mm, 12h.
Condition as seen.
It is uncertain whether the two names are in nominative or genitive case, naming the owner's name, family or father's name.