Spain 18/16 BCE
Obverse type (not shown): bust of Augustus
TYPE: Elephants with biga on triumphal arch
LEGEND: QUOD V(iae) MUN(itae) SUNT
A quadriga is a chariot drawn by four animals (quad); a biga is one drawn by two (bi).
"Because the roads have been built/fortified": This legend reminds the viewer that Augustus had made badly needed road repairs out of his own coffers and, further, would recall Augustus' benefactions in general.