Anonymous Third-siliqua, Aquileia, AD 375-92, poss. 
struck under Theodosius I

Helmeted, draped bust of Roma right.
XV within wreath terminating in large jewel.
Mintmark AQ.

RIC IX, -; Bendall (2003) 3; Bland "Anonymous half-siliquae", 3.
Rated R5.
Not in RIC with this mintmark.