This item is a HORSE and DOG MEASURING RULE. Possibly, it was used by a dog and horse show judge as it is small and portable. It consists of a retractable tape in a reel marked in both inches and hands. It extends 72" - six feet. Attached to the reel is a folding ruler with level for measuring an animal. The rule is marked to 12". It is marked Cooper W. Jones & Co., Patent #13203 on the ruler.