Thank you Ariel,
Thank you Battara,
You just caught me trying to digest Ariel's kind coments, as i wasn't familiar with some of the terms. I now found " Shikargaha" in Tirris's Islamic Weapons, and as for "Delhishani", i wonder if it derives from Delhi

.
I am happy, for a start, that this piece isn't some kind of a knock off. Also its probable age is a great score for me.
As for possible patterns on the blade, i can see none, with my unexperienced eyes. I am posting a picture of the other side, which is less oxided, and looking apparently of plain steel.
What i can see are a few traces of silver on the hilt, remnants of some koftgari.
I wish the engravings, not being animals, could still be decodeable.
What do you gentlemen think of it ?
Thanks again
fernando