Maritime Signal Codes




No. 7. Yellow Cross on a Red Ground—
Coastwise

No. 8. Yellow Square on a Blue Ground—
from England.

No. 9. Two Blue and Two Yellow Squares
alternately—from Scotland.

No. 0. Blue and Yellow (Chequered)—
from Ireland.

No. 10. from the United States

No. 13. ** Caledonia

No. 14. ** Society Islands

No. 15. ** Friendly Islands

No. 16. ** Pelee Islands

No. 17. ** New Caledonia
or New Hebrides

No. 18. ** New Zealand

No. 19. ** India

No. 20. ** Cape of Good Hope

No. 21. Has Troops on board

No. 23. Quarantine

No. 24. Government Vessel

No. 24a. There is disease on board...

No. 25. A French Man-of-War

No. 26. A Merchant Vessel

No. 27. An American Man-of-War
Merchant Vessel

No. 28. **

No. 29. A Whaler

No. 30. A Foreign Vessel

The Ball shall be hauled down to half-mast when required.

few feets call attention to any of the fore-going communications.

When the Ball is hauled down from the mast-head, the signal indicated is made the North Head; one or more of the following signals will be made, viz:

Number against the Name has gone
to sea.

A Ball prepared against the Yard-arm... The Vessel has put into
Port William.

A Blue Pendant... She has anchored.

Two Pendants... She has passed out of the Heads.

Union Jack... The Governor is on board.

Two Pendants... A Vessel put back.

It is intended to have a short arm on the signal-mast below the cross-tree, for the purpose of indicating distances viz:

One ball in sight... Off the Heads
Projecting horizontally... Beyond The Tiri
(tally.)

As length of 26ft... Off Tiri inside
As length of 20ft... Inside the reef of Rangitoto Island

When drawn up to the cross-tree...

Demands for Pilots will be responded by hoisting of a Tricoloured Flag on a pole 40 feet above the water on the Signal Station, and signals made to the steamers or vessels requiring to be boarded on the same.

David Rough,
Harbour-Master.



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Online Sources for this page:

VUW Te Waharoa PDF New Ulster Gazette 1849, No 23





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🚂 Maritime Signal Codes for Vessel Identification and Status

🚂 Transport & Communications
Signal codes, Vessel identification, Maritime flags, Harbour signals
  • David Rough, Harbour-Master