Not identified yet

Material: shell, brass.
Date: ca 1840.
Origin: France
Size: 2 1/4 x 1 3/16 inches
With frame: 2 1/2 x 2 1/4
Condition: mint

 

Still trying to indentify the subject.

The carving is superb. This magnificent cameo is very unusual because the subject. Hairlines are a peculiarity of this kind of orange shell.