revdoc drew,

Those would appear to be excellent references. I previewed the pages available on Internet for book "Iron-Making Societies: Early Industrial Development in Sweden and Russia Evans & Ryden, 1998" and will be looking for it at Barnes and Noble. It covers lots of territory and paints with a sometimes broad brush, understandable when subject is so widespread and diverse.

Summer of 2007 I visited several of Vallon järnbruk and so far, all my reading about Swedish iron production has been recent books about these sites of iron production from Dannemora iron ore. Rather a smaller topic that what Evans and Ryden and colleagues take on.

Thanks again,
Niklas