"Locate the printing plates" is a mission objective in Sequence 7 / Memory: Unbreaking The Bank
Walkthrough[edit]
You can see the counterfeiter move into the marked building. In there you will find the printing plants that Abberline is very much after. Approach the building that the Blighter went into and use Eagle Vision. Look up the building and search it to find the missing plates.
Evie pays a visit to the center of London after Jacob's assassination of Twopenny.