Original 140 year old German bisque doll with original markings on the neck

This German porcelain bisque doll is 22 inches tall, all the limbs, including the hands turn at different angles, all the original leather body with beautiful eyes that open and close, it has the original markings on the back of the neck, which makes it even more valuable. The doll is in very good condition, especially considering that it’s Over 140 years old. It has real hair and bendable legs and arms, the leather is in amazing condition. Originally from San Francisco before the turn of the century.