In terms of utility, this pair of objects is simply a knife and sheath; an everyday tool and its carrying case:
Knives obtained through trade were common among the Great Lakes people. They were used in hunting and food preparation, and also worn in warriors’ regalia. This knife has an iron blade marked ‘A. Hatfield’ (perhaps a maker’s mark), and a brass handle inlaid with a black material. Knives which didn’t already feature decorative inlay on the handles were often enhanced with porcupine quills. They were carried in sheaths of tanned deer hide, hung around the neck or shoulder by a strap.