Description of a Depillon French semaphore

PART OF:
Collection of documents relating to the Portsmouth-to-Admiralty semaphore line designed by Sir Home Riggs Popham
part of archive:
Collection of documents relating to the Portsmouth-to-Admiralty semaphore line designed by Sir Home Riggs Popham

Home Riggs Popham based his design on the Depillon French semaphore, but simplified it by using two signalling arms instead of the three used in the French system

Details

Extent:
200
320
Identifier:
MS/1937/3
Access:
Open Access
copyright:
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