The Frau Maria - A Great Artifact of the 19th Century

In the 19 seventies, doctor christian ulstrom found cments in the finished national archives relating to a sunken dutch merchant ship. The frau maria had been travelling from amsterdam to saint petersburg, and it sank in a storm in the baltic off the southern coast of finland,. So it was quite an old wreck by the time alstrom learned about it. It wasn't until 19 99 that the society dedicated to the search found the wreck using sidescan sonar, how you find ships these days. 90 % of the hull is intact. And this makes it a really great way to learn about dutch ship building at the time, and what