함응이
During the Vietnam War a large number or Vietnamese numismatic charms with both authentic as well as fantasy coin inscriptions were produced in South Vietnam to be sold to foreigners interested in collecting Vietnamese antiques. These fantasy inscriptions included legends like Quang Trung Trọng Bảo (光中重寶), Hàm Nghi Trọng Bảo (咸宜重寶), and Khải Định Trọng Bảo (啓定重寶), the latter of which being based on the Khải Định Thông Bảo (啓定通寶).