Not quite what one thinks of when you hear "armoured train"


2 pics from a naval site.
This is the caption to the first pic: "A British armored train designed and
manned by Terrible’s crew during the Second Boer War, covered with 6 inch
anchor rope, provided by the Royal Navy, to provide it protection. The
improvised additional armor was the source of its name, “Hairy Mary.”
(Photo from the McGregor Museum)"