Here is another md find to figure out

[jtw1313]

Length is 11.25 inches width is 4 1/2 inches from center

 

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[Mud Hut]

looks like the blade to a whale flensing tool.

 

[wecoyote]

Looks like an old Edging Iron (gardening tool)

 

[Darrow]

Alaska ulu knife?

 

[littleneckhalfshell]

Nut chopper, used with wooden bowl? google "wood bowl and chopper"

 

[BosnMate]

Same type of knife was also used for cutting leather.

 

[BigWaveDave]

medieval torture device?

 

[jtw1313]

Lol that's was my first thought bigwavedave that why I kept it lol