1514 Japanese kusarigama or chain and sickle.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...k_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...ma_warpick.jpg
Previously:
https://www.homemadetools.net/forum/...998#post164505
https://www.homemadetools.net/forum/...473#post122635
https://www.homemadetools.net/forum/...171#post126210
