This vintage advertising metal screwdriver has “Chevrolet and Buick Cars. Phone 91- Lennox, So Dak “. On one side,   Other side has “Compliments of Greenfield Garage.  L. Greenfield Prop”.       It measures 3-3/4” long, this is small, but a Chevrolet collectable accessory.    U won’t find many out there, I’m guessing before 1940s.   There is some wear as shown in photos.