Watch List notes:

Lydia, Tralles. Caligula. A.D. 37-41. AE 20 as (20.49 mm, 6.02 g, 12 h). ΓΑΙΟΣ [Κ]ΑΙΣΑΡ (ccw), bare head of Gaius Caligula right, eight-pointed star below truncation / [ΚΑΙΣΑΡΕΩΝ], pomerium ceremony, priest/colonist plowing right with yoke of bull and ox. RPC 2649; BMC 121; SNG Munich 734. VF / F, light green patina with minor areas of encrustation. Rare.