1.25" bore diameter, 15.75" brass barrel. The barrel is marked London and features two London proof martks, along with a *IB proofmark for the maker. The lock is marked with a crown over GR, and marked Tower at the rear. Mechanical works are all inside the lock. With brass furniture, including an acorn finial trigger guard. Walnut stock with a brass tipped ramrod and one brass ferrule.
The brass barrel has some slight stains, but has an otherwise bright patina. The stock has some nicks and dings, but is in good overall condition. The bore and action are very good.