Watch List notes:

C. Postumius At? or Ta?. 73 B.C. AR denarius (18 mm, 3.71 g, 7 h). Rome. Draped bust of Diana right, with bow and quiver over shoulder / [C ·] POSTV[MI] in exergue, hound running right; spear below. Crawford 394/1a or 394/1b; Sydenham 785 or 785a; Postumia 9 or 9a. A number of nicks and light surface porosity, otherwise good very fine. 

Ex Numismatica Tintinna E11 (21 July 2011), 1058.