Tralles, Lydia, AR Cistophoric tetradrachm. 166-160 BC. 29  mm, 12.56 g. Magistrate Arte.

Cista mystica with serpent, within ivy wreath.
TRAL to left of bowcase between two coiled serpents, ARTE above, helmeted head of Athena right in right field. 

Mersin 91; Paris 2693; Mionnet Supp. VII, 649; Pinder 150.

With permission of cngcoins.com, Mail Bid Sale 64, Lot 275, Sept. 2003.