Thank you for the fast response.
Correct me if I'm wrong, and I most likely am.
The sword was made by the Kumabe family and they had a smith working for them named Tadatoshi who made the sword? (Or is Tadatoshi the last name) And the smith is a RJT smith and that is a average to below average sword maker and they made swords in the Higo region, a older region of Japan.
So it was not a factory made sword, that's good.
So I have a great story to tell my father in law. His father brought this sword back from Japan and he was interested in its story and now I have one.
Thanks
Tom.