Handpainted Enamel on Portrait Signed Red Guilloche Background

Enamel on Portrait of a woman in side profile, signed lower right red guilloche background.
An incredible detail with fine painted delicate features on this enamel painting. The red guilloche behind the woman gives her an almost halo.
The frame is a Neoclassical brass frame.

Signed lower right, I can not make out the signature done in a gold. Please see details of the painting and of the signature.

Size: Frame 4 1/4" x 3 1/2"
Oval Portrait 2 1/4" diam.

Condition: Fine, no damage to the painting, original metal tabs intact on the back. Minor soiling

If you have any questions or need additional images, please feel free to contact me.