612
The Germans used the old fortress of Hellevoetsluis in their defence system.
It was named Stp XXVIII HM.
This 612 is the only St bunker built in the Stp.
The tobruk in detail.
The Germans used the old fortress of Hellevoetsluis in their defence system.
It was named Stp XXVIII HM.
This 612 is the only St bunker built in the Stp.
The tobruk in detail.