Watch List notes:

Helena. Augusta, AD 324-328/30. Æ Follis (19mm, 3.15 g, 6h). Siscia mint, 5th officina. Struck AD 326-327. Diademed and mantled bust right, wearing double necklace of pearls / Securitas standing left, holding branch and raising robe; •ЄSIS•. RIC VII 204; LRBC 729. Brown patina, some toned silvering, traces of green deposits. EF.

Seaby Coin & Medal Bulletin 798 (March 1985), no. C61.