I saw this tool at a yard sale today. It appears to be some sort of slicing or cutting device.
The construction however seemed fairly lightweight, I couldn't picture putting something dense, heavy, etc. through it.
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Sign up to join this communityPhil is right, it is for slicing vegetables. Specifically it is a mandoline. https://en.m.wikipedia.org/wiki/Mandoline
That tool is indeed a slicer for cutting cabbage in preparation for fermenting it in a large pottery crock for sauerkraut. My mother used one very similar to make a five gallon and a ten gallon of crock full of sauerkraut every year back in the 50's and 60's.