Watch List notes:

Vologases IV (147-191), Tetradrachm, Seleukeia on the Tigris, November AD 150 ; BI (g 13,06; mm 31; h 12); Bearded bust l., wearing double banded diadem and tiara; behind, B, Rv. ΒΑΣΙΛΕΩΣ / ΒΑΣΙΛΕΩΝ / ΑΡΣΑΚΟY / OΛΑΓΑΣΟΥ / ΔΙΚΑΙΟY / ΕΠΙΦΑΝΟYΣ / ΦΙΛΕΛΛΗΝΟΣ, king enthroned l., receiving a diadem from Tyche l.; above, BΞΥ. Sellwood 84.10.
Cabinet tone, about extremely fine.

Ex Classical Numismatic Group, Mail Bid Sale 66 (19 May 2004), lot 816.