Russian sechka cabbage knife.
https://s3-us-west-1.amazonaws.com/h...e_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...686#post159433
https://www.homemadetools.net/forum/...761#post143929
https://www.homemadetools.net/forum/...480#post142866
https://www.homemadetools.net/forum/...540#post132321