Watch List notes:

Bithynia, Tium. Antoninus Pius. A.D. 138-161. AE (24.6 mm, 9.27 g, 6 h). ΑΥΤ ΚΑΙСΑΡ ΑΝΤΩΝ ΙΝΟС, laureate bust right, wearing paludamentum / ΤΙΑΝΩΝ, Poseidon standing left with foot on rock, holding dolphin and trident. RPC IV online 6120 (temporary); RG 41. Good Fine, green patina. Very Rare.