Some time ago I visited the new International Maritime Museum in Hamburg (Germany).
http://www.internationales-maritimes-museum.de/
The exhibition opened last year and shows the largest private collection of marine collectables on 10 floors.
Here are some pictures:
Entrance with midget submarine (currently in restoration)
One floor only shows ship models (the world largest private collection of ship models)
Another floor is only submarine warfare
KM grid, Enigma and radio receiver of a submarine who travels from Wilhelmshaven to Philadelphia
German Torpedo Engine and Depthcharges
Dreadnought and Pre-Dreadnought models
Santa Maria model in gold
WWI model in silver
Amber models
Ivory models
Bone model
Shell from Bismarck
Skull alleged to have belonged to Klaus Störtebeker (German Pirate), found in 1878
When I have time, I will once again go there and take my time to browse through the numerous documents and plans of WWI ships. This requires a prior application, since the archives are not publicly available.
