Land Periscope or Hyposcope, 1914
Picture showing a Hyposcope, or Land Periscope, being used by a German Staff Officer during 1914. The lens was sixteen feet above the ground, protecting the officer from enemy observation.
How to cite this article:
Rickard, J (1 October 2007), Land Periscope or Hyposcope, 1914, http://www.historyofwar.org/Pictures/pictures_periscope_land.html