Dear Mahmoud,

Thank you for contacting Mearto with your appraisal inquiry.

The presented object appears to be a shamshir sword probably made partially in Persia in the 18th/19th century. The blade is signed by the maker or workshop of KALB'ALI who was active in Persia. Such blades were used during the Ottoman Empire and the handle could be added later.
This piece is in medium condition and there is no serious damage visible in the images provided.
A fair market estimation would be between 1.500 to 3.000 USD.
This estimate is based on actual recent past recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary.

With kind regards,
Georg