Chart, colour lithograph, sheet 2013, Saint Bees Head to
Silloth. published by the Hydrographic Office, Taunton,
Somerset, 1987.
There are insert maps of harbours - Silloth, Maryport,
Workington, Whittehaven and Harrington.
Hydrographic Office 1850s onwards
inscription:-
printed upper right
SAINT BEES HEAD / TO / SILLOTH