Watch List notes:

ATTICA, Athens, (c.A.D. 264-267), AE 23 (6.49 g), obv. helmeted head of Athena to right, wearing crested Corinthian helmet, dotted border, rev. **AQHN A I WN*, Athena standing front, head to left, holding a spear in her right hand and shield in her left, within a dotted border, (S.4850, Sv. Pl.86, 6-12, 14-18; Kroll, Athenian Agora Period VI (264-267 A.D,.), No.318 [p.163, Pl.20], RPC IV [on line] 3418, SNG Cop. 393, BMC 678). An unusually attractive example about extremely fine and very rare in this condition.

Sear (1982) believed that this type probably represents the brass statue of Athena Promachos on the Acropolis. A similar example nearly as fine realised on the 29 June 2019 in a Leu Numismatik web auction 8, 550 SFr. = $563 US.