I would be glad to give for free to someone who can appreciate them the
following four books that I cannot use because
1) I don't know German
2) I already have the same pubs in a language I know and
2) they are quite dated (1980)

Nautischer Funkdienst (Band 1, Band 2, Band 3)
Verzeichnis der Leuchtfeuer und Signalstellen (Teil IV, Der Kanal und
westeuropatsche Meere bis Gibraltar, Azoren, Madeira und Kanarische Inseln)
All published by Deutsches Hydrographisches Institut, Hamburg

Just drop me a line.
Daniel