Watch List notes:

Gallienus. AE 28; Gallienus; 253-268 AD, Tyre, Phoenicia, AE 28, 14.48g. C-1498, cf. BM-413 (same rev. type for Elagabalus). Obv: IMP C P LIC GA[LLIEN]VS AV[G] Bust laureate, draped, cuirassed r., seen from front. Rx: COL TVRO - [METR] Ovoid baetyl (holy stone), encircled by serpent with head r., between palm tree on l. and murex shell on r.A rare and interesting reverse type, showing a serpent coiled around a large holy stone, which is itself placed between a palm tree on the left and a murex shell on the right. VF / gVF