Great piece! I think this is most likely Arabian in origin. The Karabella hilts like this were well used. I will post one from Pg10 Of Elgood's
The Arms and Armour of Arabia described as a Arabian nimsha with wooden hilt. The nail head decoration is well documented on Arabian swords and daggers. Is there any way to get a better picture of the guard? The blade most likely is as Jim describes, and European. I will see if I can find any reference to the marks.
Again a great piece (I want it

)!
Jeff