Tranquillina AE20 of Saitta, Lydia. AD 241-244.

FOYR TRANKYLLEINA CA, draped bust right.
CAITTHNWN YLLOC	around and beneath river-god Hyllos 
reclining left, holding reed, resting left arm on an 
overturned vase from which waters flow.

BMC 63-64; SNG vA 3104; SNG Righetti 1071; Imhoof Flussgötter 322; Weber 6892; RPC VII 227 etc.
Very common.

Contributed by Ilya of highrating-lowprice on ebay.