caption: The image shows a man riding on the back of a horse, with a letter written on the paper in front of him. The letter appears to be a letterhead, with the man's face partially obscured by the horse's mane and tail. He is wearing a hat and a long coat, and his eyes are focused on something in the distance. The horse is galloping forward, its mane flowing in the wind, and the paper is slightly crumpled, suggesting it has been handled multiple times.