A "Whatzit"?

[Todd M]

Anyone recognize this tool?

 

[freebullet]

Not really but, as with most tools I could find a use for it.

 

[Brad]

Looks like a cross between an elephant and a rhino

 

[Rick]

Dunno what it is but at least it has a foot to stand on.

 

[Todd M]

All very informative answers, thanks! All true answers also

 

[JSH]

I though when I first looked at the pictures it was one of those tools to put set in a hand saw. But with the flat spring on top I believe it is a hand crimp of some type for sheet metal. The one gizmo that looked similar was floor mounted and foot operated. It put a dimple in a sheet metal seam rather than use a rivet or screw.
If there was no spring on top I would say it was a notcher for sheet metal.