Watch List notes:

Probus. AD 276-282. Antoninianus (23mm, 3.99 g, 12h). Ticinum mint, 1st officina. 3rd emission, AD 277. Radiate and helmeted bust left, seen from behind, holding square shield and spear / Mars advancing right, holding transverse spear and trophy; PXXT. RIC V 430; Pink VI/1 p. 61. Good VF, some silvering.