Sword for identification

[GIO]

Hi Marc and Fernando,
Thanks a lot for your kind answers.
Yes, the end of the tang is threaded and what appears at the beginning of the tang is a mark (see first pic).
On the blade appear a few letters and what appear decorative carvings.
The letters seem to be : E N T O L on one side and N X T O L on the other.
Another older sword of mine (see second pic) has a similar inscription : N T O L