Watch List notes:

Parthian Kingdom. Uncertain Usurper (Tiridates?). April/May-October/December 27 B.C. BI tetradrachm (30 mm, 1 h). Seleucia on the Tigris mint, Daisios, 285 S.E. (May 27 B.C.) Diademed and draped bust of Tiridates(?) left / King seated left, holding Nike and scepter; in exergue, month (ΔAIΣI). Sellwood 55.5-6; Shore 308. VF, thin edge crack, In an NGC slab without grade. NGC certified.