The listing, Ancient Metal Sword Chinese Miniature Toy or Symbolic Figurine has ended.
This is a mini sword from an ancient Chinese Dynasty. It is very very old!
I do not know much about it, but I was told by an expert that it likely to be of ancient Chinese origin.
This is not a usable blade, and was never intended as such. It was either a toy, or was an accessory to an ancient figurine.
I don't know what metals are used in it's construction, but it appears to have high copper content due to the greenish rust.