What Is This?

This teapot came from Seoul, Korea, around the Vietnam War era, from some village (for the life of me couldn't tell you its exact geographical origin) and I have looked and looked and after hours of research, interrupted by my four children, for the life of me I cannot find any information of its maker. Its an unsolved mystery! If anyone thinks they may have any tips or pointers to help me shed some light on the subject it would be greatly appreciated!