Magnentius, AV 3 solidi medallion, Aquileia, AD 350–353. 13.35 g. 

IMP CAES MAG–NENTIVS AVG, bare-headed, draped and cuirassed bust right. 
LIBERATOR REI PVBLICAE, Magnentius, nimbate and in military 
dress, on horse pacing right, offering his right hand to 
the turreted and draped figure of Aquileia, holding 
cornucopiae and scroll.
Mintmark SMAQ. 

RIC VIII Aquileia 122; Cohen 26; Gnecchi 1. Kent-Hirmer pl. 
168, 669 (same reverse die).
Very rare.

With permission of Numismatica Ars Classica, May 2014.
Estimate: 150,000 CHF