Chess set in a museum (Malmö, Sweden)

I took this pictures in August 2006 in the museum of the city of Malmö, Sweden. The museum is in a nice castle called Malmöhus. I had a very enjoyable holiday there but, you know, the chess player is always looking for any excuse to occupy his mind in its favourite hobby.

This chess set must be valuable. As you can see, it is protected under a glass cover. I tried to make sense out of the possition but two facts prevented me from doing so: the pieces are carved on a way that makes them all look as if they were the same piece, and even taking that into account and forcing the imagination, it does not seem the position makes any sense at all.