Watch List notes:

Constantinus I (306-337) - BI Centenionalis (Thessalonica AD 326-28, 2.92 g) – CONSTANTINVS AVG, laureate bust right / PROVIDENTIAE AVGG, two-turreted gateway of military camp, star above, mint mark S M TS in exergue followed by officina mark Δ, dot in right field (RIC vii, p. 518, 153) – EF-