Mr Wilson, thanks for your answer.
Yes the cross hatching has brass inlay. I'll put on a picture with a better vieuw of it.
I was wondering if the tsuba could be from the same time period as the blade it is on.
The mei on the blade is could be Bizen kuni ju Osafune Sukesada.
I am not sure if that is correct because it's all very new to me but I'm trying.
Then of course I'll have to try and find out wich of the many Sukesada's comes close.
I hope someone can tell me if I read this mei correct.
Thanks, Maris.