armour-stone

Large irregular lumps of hard rock used for sea defences etc.

[img_assist|nid=14483|title=Armour stone 1|desc=Transhipment of armour stone on to a smaller barge for delivery to the beach|link=none|align=left|width=391|height=200]

[img_assist|nid=14484|title=Armour stone 2|desc=Unloading of rock armour at high tide|link=none|align=left|width=318|height=200]