Admiralty publication NP294 - How to Keep Your Admiralty Products up-to-date
9th Ed. 2016
Sections on tools needed, publications, Notices to Mariners, Format of Chart Updates, how to apply the updates to your charts, explanation of terms used, symbols, drawing conventions, and 17 worked examples.
Pb. 116pp A4 size
Symbols and Abbreviations used on Admiralty Charts - NP5011. Admiralty Publication, A4 reference book. 6th Edition 2016