This steep street ascends from the Forum along the slope of the Arx to the south end of the Campus Martius, eventually joining the Via Lata (Region VII). An argentarius is a banker, so this is a street of bankers and moneychangers, as indicated by this plaque, a shop sign for a banker.
To reach Tristia Tresunus's final destination, take the Atrium Libertatis exit.
scroll for Group IV
Moneychanger's Shop