The Aladdin Diamond Thermos Coffee Soup No. 3C is a vintage collectible thermos made of plastic in the United States during the 1970s. This half pint thermos is designed by Aladdin and features a unique diamond pattern on the exterior. With its red color and ability to keep drinks both hot and cold, this thermos is a nostalgic piece of lunchbox history that is sure to appeal to collectors of vintage thermoses.