Za775.One of the exits towards the beach was suppose to be used as a casemate for a 37mm that covers James Ravine. It was deduced that the arched exit visible was the one were the Model 1916 Infantry gun would have been emplaced. (37mm GE – Gun Emplacement as shown in the map above).
Note from Karl:
This picture was blocked by Photobucket but is now cvorrected, as of 2018-03-29
