Skipskip, looking at your 3 or 4 pictures, a few things that I noticed was (1) on the round grooved disc wheel, it's stamped "OIL",
that would make me look away from tobacco or food products.
(2) below the grooved disc/wheel ? looks like an anvil that is adjustable up & down by way of loosening the 2 square headed screws
below the anvil.
(3) when you pull the lever, does the cogs make the disc/wheel slide back & forth ??
mounted on a board, it could be a once in a while needed tool ??? 1 hole in the board could be to hang it on the wall near a bench.
used like for perhaps straightening something like copper tubing ?
not being able to touch this tool, this is just my off the wall observations.