Watch List notes:

LYDIA, Tralleis, (c.2nd century B.C.), AE 20, (5.76 g), obv. laureate head of Zeus to right, rev. winged thunderbolt within wreath, in two lines **DIOS TRAL/ LIANWN*, (S.-, SNG Kayhan 1010, BMC -, SNG Cop. -, SNG von Aulock -, M&M Deutschland 17, [lot 910], Num. Naumann Auction 60 [lot 203] notes as extremely rare, Kunker Sale 333, [lot 412] notes it as of great rarity). Brown patination, nearly extremely fine and very rare.

Ex Nummorum Auctiones, Italo Vecchi Ltd., London Auction Sale 17, 15 December 1999 (lot 323 and illustrated).