Watch List notes:

BITHYNIA, Heraclaea Pontica. Tranquillina. Augusta, AD 241-244. Æ Tetrassarion (29mm, 12.18 g, 7h). CABEINA TP ANKYΛΛEINA, diademed and draped bust right / HPAKΛEΩTA N ΠONTΩ, Herakles, nude except for lion's skin over shoulder, standing left, grasping the Lernaean Hydra, raising club above his head, about to strike. RG –; RPC VII.2 –; SNG BN –. Unpublished in the standard references. Brown patina. VF. Extremely rare and unpublished.