Erotic Persian Painting On Ivory

Painting.
Era: Possibly Qajar Dynasty, Persia.
Date: circa 1900 or earlier.
Techniques and Material: Painting on ivory.
Size: 3 1/2 X 2 3/4 inches.
Source: [1].

This painting depicts a nude bathing with attendant and onlookers/horses in the brush, circa 1900 or earlier, illegible signature verso.