
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…

Bibliographic identity checked against available scan and source evidence.
Digitizing archive catalogue
https://archive.org/details/bentleyscomplete00bentrich
obscure/bentley-phrase-code-1909.pdf
SHA-256: 089e78303604b1478f813bea7597f1f355b963cc28ae7c10b45590f6123c77a5
Catalogue reviewed 19 September 2026. Original scans retained; catalogue labels do not endorse historical claims.