Comments by "Gregory Wright" (@gregorywright4918) on "The Development of Ironclads - 1867 to 1872 in the Royal Navy - The Good, Bad and Useless" video.

  1.  @lwilton  I would not call them "naval fortificatiions" (which is what caught my eye at first), but more like "long range artillery". The most interesting thing about them would be the rail carriages and the special rail track laid to fire them from.
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