German Observation Ladders, c.1914
Here we see two German observation ladders, complete with armoured shields for the observers. This picture was probably taken during peace time exercises, and these devices can't have been of much use once the fighting started in 1914. They would quickly be replaced with giant periscopes, leaving the observer safely on the ground.
How to cite this article:
Rickard, J (23 June 2014), German Observation Ladders, c.1914 , http://www.historyofwar.org/Pictures/pictures_german_observation_ladders.html