Jak P. Mallmann Showell

Jak P. Mallmann Showell is a well-known naval historian and author and has written more than twenty books on the German Navy and U-boat operations. He has researched extensively on original documents both in the U.K. and in Germany and is regarded as one of the world's leading authorities in this field.

Jak P. Mallmann Showell is a well-known naval historian and author and has written more than twenty books on the German Navy and U-boat operations. He has researched extensively on original documents both in the U.K. and in Germany and is regarded as one of the world's leading authorities in this field. See less