China
Western Han Dynasty, Emperor Wang Mang Knife (key) Money ND (Ca. 7-23 AD), Hartill-9.12 (this for a gold inscribed knife), Jen-69, FD-458, Yi Dao Ping Wu Qian (One Knife Worth Five Thousand), VF. The Hartill, and Jen numbers seem to be for the gold inscribed knives. This is the identical type, without the gold.
Estimate: 400-500 USD