However, the original markers were lost while the monument was being moved to  left of its primary place during the bridge restoration in 1964 and haven't been able to be found so far. The markers existing on the monument today are the replicas of their genuines.
The original markers were lost during the relocation of the monument to its left side in 1964, while it was being moved as part of bridge restoration work. The current markers on the monument are replicas of the originals.