Welcome to American Vintage Parts! VINTAGE STANDARD OIL CROWN RESEARCH TEST CAR LICENSE PLATE TAG TOPPER 1930’s. THIS IS AN OLD STANDARD OIL RESEARCH TEST CAR LICENSE PLATE TOPPER. GREAT WING AND CROWN DESIGN. IT MEASURES 9 1/8″ ACROSS THE WINGS AND 5 3/8″ TALL. PLEASE REFER TO THE PHOTOS FOR CONDITION. S and INTERNATIONAL buyers. The item “VINTAGE STANDARD OIL CROWN RESEARCH TEST CAR LICENSE PLATE TAG TOPPER 1930’s” is in sale since Monday, April 30, 2018. This item is in the category “eBay Motors\Parts & Accessories\Apparel & Merchandise\Garage Signs & Décor”. The seller is “americanvintageparts” and is located in Commerce, Georgia. This item can be shipped worldwide.