Watch List notes:

Postumus (259-268). AE (Double?) Sestertius, Lugdunum mint. Obv. [...]VMVS PF AVG. Radiate head right. Rev. LAET[ITIA/AVG] Galley right, with four rowers and steersman; below, waves and branch(?). Cf. RIC V 143-4. AE. 14.41 g. 28.00 mm. Reverse of unusual style. Dark green brown patina. VF.