They're both made by Nicholson. They're pretty obscure items. (The small one is broken at one end.)
There are such things as 'filing machines'. They're roughly analogous to scroll saws -- they reciprocate a file, rather than a saw blade, up and down through an opening in a table. This outfit offers the makings of one.
If I had limitless resources, I'd get one of those. I could see that being a very helpful machine for some types of delicate work. But I don't have limitless resources, so I'll just stash these in the drawer where I keep files.
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