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Description: | See photos ref Q55575-77 re German Mast Periscopes in situ
periscope
The mast periscope was designed for observing over obstacles of between 30 and 85 feet in height, and could be rapidly erected or taken down and transported on its carriage.
It essentially consists of three parts, namely a steel telescopic mast, and upper and lower optical systems that are attached to it. The telescopic mast is carried on trunnions on the carriage and travels in a horizontal position. The mast contains seven tubes which can be raised or lowered within each other by means of a cable attached to a winch, and when erect, the mast was steadied by three guy ropes. | Publisher: | http://www.iwm.org.uk | Source: | Imperial War Museum | Identifier: | http://www.iwm.org.uk/collections/item/o... | Go to resource |
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