"Locate the counterfeiter" is a mission objective in Sequence 7 / Memory: Unbreaking The Bank
Walkthrough[edit]
Head straight across the street and through the hallway in the building in front of you. This will lead you directly to one of the Counterfeiters.
Go into the plaza the hallway leads to. Look to the right using Eagle Vision. This will help you find the person you are looking for.
Evie pays a visit to the center of London after Jacob's assassination of Twopenny.