Watch List notes:

Helena, mother of Constanine I (died 330 AD) - Solidus 324-325 AD - Mint: Nicomedia - Obverse: Diademed and draped bust right - Reverse: Securitas, veiled, standing facing, head left, holding branch and raising skirt - gr. 4,49 - Very rare. Struck in high relief on a broad flan. Minor marks, otherwise extremely fine RIC 80. C.11