Watch List notes:

JUSTINIAN I, (527-565), AE follis, Constantinople mint, (20.50 g) issued year 16 = 542-543, officina B, obv. Justinian bust facing, DN IVSTINI ANVS PP AVC, rev. M, B below, year X/UI, CON in exergue, large thin flan, (S.163, DOC 41b, BMC 66, To.97, H.95a.5). Dark brown patination, extremely fine and rare as such.

Ex Dr V.J.A. Flynn Collection, and A.H. Baldwin and Sons with ticket.