Here is a something that was included with a collection of insulators I recently acquired. I have no idea what it is or how it was used. The copper metal box measures 2 inches wide, 3 1/4 inches high and 2 3/4 inches deep. The red faceted glass reflector is 7/8 of an inch in diameter. There is a series of 8 pictures showing the interior of the piece. [id=306774286] [id=306774405] [id=306774468] [id=306774664] [id=306774870] [id=306774923] [id=306774982]