Dale Earnhardt Jr. Signed #1 Polar Bear Coca Cola 1/24 Diecast is a rare and authentic collectible item. This diecast product is signed by Dale Earnhardt Jr. and comes with a James Spence Authentication (JSA) certificate of authenticity. The diecast is a 1/24 scale model of the #1 Polar Bear Coca Cola car. It is a must-have for any NASCAR fan and collector.