Communication key card for Popham 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

Includes a drawing of the semaphore on the reverse side

Details

Extent:: 130
210

Identifier:: MS/1937/2

Access:: Open Access

copyright:: More

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Collection of documents relating to the Portsmouth-to-Admiralty semaphore line designed by Sir Home Riggs Popham