This appears to be a vintage General Electric (GE) advertising ashtray or badge. It features the classic GE logo in the center of a heavy, likely bronze, metal disc.
The design is characteristic of the Art Deco style, suggesting it dates from between the 1930s and 1950s. It was likely a promotional or advertising item.The item in the image has a hook attached, potentially indicating it was converted into a pendant or fob.