Here are all Memento Locations for the (Pieces of History Achievement / Trophy) in Call of Duty: WW2 / Call of Duty: World War 2
There are 33 Mementos to collect. Each of the 11 Missions has 3 Memento collectibles that can be picked up along the way. None of the Mementos are missable. You can collect missing collectibles via mission select. Each item is saved instantly after you pick it up.