1847 / Book or monograph
A Code of Signals ... in the Merchant Service
Communication, telegraphy and codes · Navigation, seamanship and maritime practice
271 pages Open documentOpening preserved document…
On the same shelf.
Related subjects
[pref. 1909] / Dictionary, handbook or reference work
Bentley's complete phrase code (nearly 1000 million combinations) with at least 2 letters difference between each half-code word)
Communication, telegraphy and codes
356 pages Open document
Undated / Book or monograph
Histoire de la télégraphie
Communication, telegraphy and codes
283 pages Open documentSource record
Bibliographic identity checked against available scan and source evidence.
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https://archive.org/details/bub_gb_qxZEAAAAYAAJ
File and catalogue details
obscure/popham-telegraphic-signals-1803.pdf
SHA-256: d655257a3f4f4126e48aa4564ad40d22d712ad1c3c9e9b63a7ddd606b27c9431
Catalogue reviewed 19 September 2026. Original scans retained; catalogue labels do not endorse historical claims.