This shotgun's serial number falls after the published serial numbers in W. Keith Neal and D.H.K. Back's "The Mantons: Gunmakers" and "The Manton Supplement," but like many of the late Joe Manton guns listed by the authors, it is a caplock 13 bore shotgun with detachable strikers and "JOSEPH MANTON & SON HOLLES STREET CAVENDISH SQUARE LONDON" marked on the rib. "The Manton Supplement" lists the last serial number as 11,500 in 1839-1842. The "I H & S" markings on the barrels and locks indicate Isaac Hollis & Sons were involved with this gun possibly updating it later and numbering it. Hollis & Sheath became Isaac Hollis & Sons starting in 1861. The underside of each of the barrels is numbered to the gun and has London proof marks with "13" bore markings and "I H & S" marks. The locks have "JOSH MANTON & SON PATENTEES" on the exteriors along with ornate scroll and border engraving, the serial numbers inside on the plates along with "I H & S," and the noted early style percussion hammers with detachable strikers. The furniture features primarily scroll and floral engraving. The trigger plate has a stylized pineapple finial, and the trigger guard tang has the serial number in large numerals. The wrist escutcheon is silver, and the breeches have platinum plugs. The stock has a checkered forend, tear drop flats, checkered wrist, and 14 5/8 inch length of pull.