Sailing directions for the circumnavigation of England, and for a voyage to the straits of Gibraltar. (From a 15th century ms.) Mentions Waynes and Weirs at Orwell Haven (Fish wiers?)
Charts & Maps
Chartlets from 2010 to 2019 no survey in 2020 due to COVID.
Deben Entrance year by year
French site with lots of material not yey explored.
Free Nautical Charts
Includes the Deben and some notes on distances. See here.
1635 Mercator Atlas of the World
History here and online maps here.
Soviet Maps
Extensive, need to pay.
L Brown Map Digital Collection
https://suffolkinlets.wordpress.com/
Suffolk Inlets
Here
1752 Thames Chart
By Captain Washington. 1852 A new chart of the River Thames. With its entrances
1852 A new chart of the River Thames. With its ...
Source: Survey Open Data