Fortress Brielle : Kaai Gate, before 1905.
Field side of the Kaai Gate seen from the ravelin in front of the gate. This gate was built in 1709 as part of the overall modernization of the fortifications of Brielle, and was the entrance to the fortress from Zwartewaal / Geervliet.
Hover the cursor over the picture for about the same location in May 2015.
Postmark : October 26th 1904.