Watch List notes:

EGYPT, Alexandria. Nero. AD 54-68. BI Tetradrachm (24mm, 12.63 g, 12h). Dated RY 3 (AD 56/7). Laureate head right / NEO • AΓAΘ • ΔAIM, Serpent Agathodaemon erect right, crowned with skhent, with grain ears and poppies in its coils, L Γ (date) to right. Köln 113; Dattari (Savio) 265; K&G 14.6; RPC I 5210; Emmett 106.3. Toned, minor roughness. Near VF.

While the appearance of the serpent Agathodaemon on Alexandrian coinage is relatively common, coins naming him are quite rare.