This is a pretty rare Julian II medallion from Rome, but maybe the price is a bit steep at $1500.
"Julian II. 360-363 AD. Æ Medallion (30mm, 12.10g). D N CL IVLIANVS NOB CAES, bareheaded and cuirassed bust right. / VIRTV S AVG N, Julian II standing left, holding labarum and laurel branch, his right foot on seated captive left, who is looking back at Julian. (mint of Rome). Gnecchi 3 (pl. 139,
; Cohen 67. Fine, dark brown patina with touches of red, holed in antiquity, some minor smoothing. VERY RARE !!"