Thrace, Lysimacheia Æ 1/8 Mina Weight. Circa 4th-2nd centuries BC. Lion leaping to right; Λ-[Y] above, O below / Blank. Tekin -; Pondera -. 53.78g, 28mm x 28mm.
Condition as seen.
From the inventory of a German dealer.
The letter O stands for 'eighth' (OΓΔΟΟΝ).