It worked when i removed it and was used as a night light at the parts counter. The glass is back lit with neon tubes. Some of the Gra paint is starting to show some bubbles.I've seen some of these signs but never a lighted one. I don't know the exact year of the sign, but I have a pic of it hanging in the original building between 1941 and 1948. The glass lenses are 18 inches across and the complete lamp is approx 22 inches across. The item "Original Pontiac Double Sided Factory Engineered Parts Sign 1940's" is in sale since Wednesday, January 16, 2019. This item is in the category "Collectibles\Transportation\Automobilia\Signs & Plaques". The seller is "slapsht25" and is located in Elmer, New Jersey. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion.