Need Info: Instrument from Rubicon Company in Philadelphia

I recently picked up this strange thing at a thrift shop. Trying to
find out what it is. I know it isn't a radio, but figure some of you
that have been around the block may know what it was.

It has Photocells written under the top left buttons, looks like
contacts for a battery. GA under the other top contacts.

My guess it is from the 1930s-1950s

Pictures can be found at Http://www.randompostcinema.com/what.html

Anything you can tell me on what the heck it is, I much appreciate it.
You can reach me at Kamakize@gmail.com

Thanks much!