Valentinian III. AR Siliqua. Rome mint. AD 425-455. 17 mm, 2.17 g.

DN PLA VALENTINIANVS PF AVG, rosette-diademed, draped, cuirassed bust right.
VRBS ROMA, Roma seated left on cuirass, holding Victory on globe and inverted spear.

Mintmark RMPS

RIC X 2079.
Very rare, rated R4.

Offered by Heritage World Coin Auctions, NYINC Signature Sale 3071, Lot 32307, Jan. 2019.