18th century Austrian bloodletting knife.
Fullsize image: https://diqn32j8nouaz.cloudfront.net...e_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...ding_knife.jpg
Previously:
https://www.homemadetools.net/forum/...977#post171811
https://www.homemadetools.net/forum/...963#post164326
https://www.homemadetools.net/forum/...896#post160127
https://www.homemadetools.net/forum/...035#post157123
