Antique Painting Miniature Portrait of Noblewoman in Silver Frame

Antique, finely hand-painted, a miniature portrait of a young noblewoman wearing an elegant dress.
Set under glass in a solid silver oval frame with a suspension loop.
Reverse stamped with two silver hallmarks.
Measurements:
Dimensions of the oval frame not including a loop: High: 6 cm x 4.6 cm (2.4 inches x 1.8 inches).
Condition: This original painting is in good condition, with no restorations or repairs, a frame showing its age and use, and some stain spots under the glass.