The smoothbore barrel has blade and notch sights and is marked with a "P" on top at the breech. The lock has no visible markings and is secured by two screws. The furniture is iron. Wheellock carbines were used by European cavalry in the first half of the 17th century before being supplanted by the flintlock by the end of the century. Relatively few of these innovative and distinctive firearms were made for the cavalry, and very few survive.