Hamilton Electric Clock

I'm looking to see if any members might have any info on this. I've had it for several years. It's a mid-century electric wall clock from Hamilton. When I received it there was no plug-in cord; I added that. It was essentially meant to be hot wired directly into the wall. Any info if this was a commercial item that they sold? Was it a corporate item? It has a very 50s/early 60s corporate boardroom look to it. Or--as is my hunch--was this something meant to be hung behind the Hamilton watch display in a jewelry or department store. Any thoughts and info would be greatly appreciated.