Dear Jonathan,

Thank you for contacting Mearto with your appraisal inquiry.

The presented object appears to be a lamp made out of a mounted shell with 8 x 5 inches measurements. The shell has a carved cameo depicting the portrait of a woman. These carved shells are typical for Italy in the late 19th century. It was mounted as a lamp secondary in the early 20th century.
Comparable objects were recently offered and sold on the international auction market.
This piece is in good condition and no severe damage is visible in the images provided.
A fair market estimation would be between 150 to 300 USD.
This estimate is based on recent recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary.

With kind regards,
George