I have a Cornwell that looks like it with chrome pull handles and casters under it. Mine features, when the bottom drawer is SHUT it locks all the other drawers. I also bought new, a matching 6 drawer Cornwell top box to fit on top of it. This was in the mid-60's.
That Cornwel isn't a top even if that was where it was used. It's a bottom and with casters, is a roller. Take a look, I'll lay odds there are caster holes on the bottom.