I know there are two ships in this shot, but i thought i could give some info on the red salvage ship in the background. She was built in 1942 for the English navy, and served there untill she was sold to Röda Bolaget in Gothenburg, Sweden. And finally she was sold to Gothenburg Maritime Center in 2002.
For a photo of her in original fitting:

Click here

Photo taken in Gothenburg 25 January 2008
Some info on the Herkules as well:
Built in 1939, served for many many years as a tug in the Gothenburg area, now a museum ship in the same town.