Constantinus I. the Great Follis, struck AD 319-320 at London mint.
Obv: CONSTANTINVS AVG, helmeted and cuirassed bust right.
Rev: VIRTVS EXERCIT / PLN (in exergue), Standard inscribed VOT / XX, two barbarian captives at sides.
3,30 g, 19 mm.
RIC 191
dark greyish toning