Watch List notes:

Attica, Athens, silver tetradrachm, (c.165-48 B.C.), 34mm, (16.71 g), New Style coinage, with the monograms of the names which are uncertain, issue struck 186-185 B.C., (revised to 154-153 B.C.), obv. head of Athena Parthenos to right, wearing a triple-crested Attic helmet decorated with a Pegasos in flight rightward above the raised earpiece, rev. owl standing to right, head facing, on amphora, A-QE across, to left monogram YPAR (magistrates name as a monogram) and caps of the dioscuri below monogram of UGF in right field all within wreath. (cf.S.2555, Thompson 59 [same reverse die], SNG Cop. 115 = Sv.37,3, HGC 4, 1602). Struck on a broad flan, extremely fine and very rare type.

Ex Freeman & Sear, March 24, 2009 at the Chicago Coin Fair.