These two books, caught my eye. A set of twins perhaps. It is a Swedish book, and its English translation, about the Vasa.

The Vasa was a Swedish warship, which sunk in 1628, whilst on its maiden voyage. Not dissimilar to the Mary Rose, and like the Mary Rose, it has been recovered from the sea bed.

It would have been past of the fleet of Gustavas Adophus.
I used to know a beautiful blonde Swedish girl, a young single mother, and I would discuss such things with her. So pay attention in class, you never know what a Swedish blonde is interested in...