Thanks very much for sending over those photos.
So your settee is an example of the Victorian sub style known as the Aesthetic Movement. The Aesthetic movement incorporated art into furniture design that may of the major furniture makers of the era either couldn't fathom or couldn't afford to reproduce. You see numerous one off pieces that came out of the Aesthetic period that was a part of the English Arts and Crafts period in the late 19th century.
The settee has tufted upholstery on a dark carved wood frame, which appears to be walnut.
In excellent condition the Aesthetic movement settee would have a resale value of(###) ###-####SD in what is currently a tough market for Victorian antique furniture.
In a retail antique shop you may see the settee for as much as 2000-2400USD based on the location as well as the regional demand.
I hope this information was helpful to you today.
Best of luck with your antique settee .
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