Watch List notes:

Anastasius I. 491-518. AE nummus (8 mm, .79 g, 2 h). pre-reform AE coinage . Nicomedia mint, Struck A.D. 491-498. apparently anepigraphic, diademed(?) bust of Anastasius I right / Monogram of Anastasius within dotted border // N[I]. SBCV 31. Rough VF for type, slightly off-center, dark green/brown patina.

Ex Leo Hamburger 1890's.

This coin comes from a large group of Roman Provincial, Byzantine and Vandalic coins which were part of Leopold Hamburger's inventory. More information on Mr. Hamburger can be found here:https://www.coinbooks.org/v20/esylum_v20n42a19.html