Leather sex dolls are no longer available in toy shops, as these early versions are long gone. The modern sex dolls we have today emerged centuries later, having evolved significantly over time. In the 1930s, German surrealist artist Hans Bellmer introduced the concept of modern sex dolls. According to author Anthony Ferguson, Bellmer's creations marked a pivotal development in the history of sex dolls USA, paving the way for the advanced and realistic models we see today.