This is a cast iron teapot from Shoun-dou. It's an antique, purchased at an antique market. This is a well-used antique, so there is rust and a small crack on the bottom, causing a slight water leak. It is not suitable for practical use, so please enjoy it as interior decoration, for display, or for repair practice. Please check the images and purchase only if you understand and agree. I am not an expert on cast iron teapots, so please purchase at your own risk.