Bellum Sociale, Coinage of the Marsic Confederation, C. Papius AR-Denarius (19.8 mm, 3.68 g, 1h). Mint moving with Papius in Campania, circa 90 BC.
Obv. Draped bust of Mars right, wearing slight beard and crested Corinthian helmet with plume at side; viteliú (in Oscan) to left; behind neck, X (mark of value) with pellet above and below.
Rev. Oath-taking scene: youth kneeling left, head right, holding pig, at which four standing soldiers (two on each side) point their swords; c. paapii. c. (in Oscan) in exergue.
Sydenham 637; Campana 83; BMCRR Social War 35-6; RBW 1225.

Very rare. Deep cabinet tone, with iridescent highlights. Good very fine.

Ex. UBS Auction 56, 2003, Lot 198.