Vintage genuine RCA "ON AIR" Warning Sign. Plugged in and lights up as it should.The item "VINTAGE GENUINE RCA ON AIR Recording Radio Studio Warning Light Sign MI-11717" is in sale since Saturday, January 11, 2020. This item is in the category "Collectibles\Advertising\Communication & Utilities\Radio". The seller is "vintagebroadcasting" and is located in Port Washington, Wisconsin. This item can be shipped to United States.