Dear Babak,

Thank you for the new images.

The presented object appears to be an oil lamp cast out of brass or bronze with a dark patina. This piece was made in the 20th century and imitates in its style and shape older pieces.
This piece is in good condition and there is no serious damage visible in the images provided.
A fair market estimation would be between 10 to 20 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