I am posting another picture of the crane because the one earlier taken from Glover Garden (グラバー園) house was during a rainstorm and required quite a bit of Photoshoping to get clear.
This photo is clearer but suffers from being taken from inside the shipyard so it was difficult to get far enough away to get a good shot. The rain didn't help either.
The Mitsubishi Shipyard didn't seem to worry all that much about us wandering around.
There is also an excellent Museum on site which was well worth visiting.