The product is a rare July 1940 Buick Jamboree Detroit Zone promotional item, specifically a mechanical pencil made by the brand Eversharp. The pencil is a unique collectible item that likely holds historical significance as a piece of memorabilia from the 1940s. Its relationship to the Buick Jamboree event suggests that it may have been used as a promotional item by the automaker, adding to its value as a collectible for enthusiasts of vintage vehicles and historical artifacts.

The top is missing and there are no inserts. Please see photos.