London Overground Suffragette Line Collectable Guide
There are 7 collectables near Barking (1 goblin, 2 fire extinguishers, 2 route maps, and 2 defibrillators)
Collectable #2: Fire Extinguisher
Collectable #3: Route Map
Collectable #4: Route Map
Collectable #5: Defibrillator
Collectable #6: Defibrillator
Collectable #7: Fire Extinguisher