Hi everybody, with so many people pronouncing for a much later time I have to convince myself that I was wrong. Jim is also able to distinguish the blade of Ilias from the blade of my Nimcha and naturally he has more experince than me. To support a XVII century for my Nimcha was also a vague attribution to the Belluno swordsmiths made by a friend of mine that is an Italian expert of XVII century italian swords. Unfortunately I have no photos of the La Valletta Armoury Museum in Malta, because to my memory there were many similar blades. They also had similar marks also if no one of them was similar to the other. All had geometric marks with dots and small arcs. I tried to find some photos in the net by the only photo I was able to find is that visible in the enlcosed link
http://www.sitesandphotos.com/catalo.../id-53115.html
In the Museum there are possible 40 swords of this type. As you can see from the photo some are smaller or they have a larger blade at the tip. The variability is impressive. As I told you, few of them have a bridge like my Nimcha. Naturally it is possible that in the past they have got their blades from a long distance source such as India. Many thanks to Jim for the mentioned books and articles that I shall try to find. Unfortunately, sometimes I am not used to books that most probably for most of you are milestones. My I suggest the moderators to create a reference list that it will be possible to enlarge adding new discoveries. I suppose it could be useful for people that are at the beginning.
all the best to all of you
Mauro