19th Century 2 Sided Sketches of Women and 15 similar items

This is a late 19th century pencil sketch of a standing woman, 9" x 4 1/4" by sight, that is unsigned. There is also another sketch of a woman on the back. It is mounted under thin matte and glass without a frame, simply taped around the edges. The paper is somewhat yellowed with age and the matte has a tear in the bottom left corner with smudges and what could be some mildew at the bottom. Otherwise the sketch itself is in good condition.