India Sappers & Miners socket bayonet with the E.I. Co. Catche that fixes horizontally onto the side of the musket. These bayonet types were supplied by the British trade and this particular bayonets maker is S. HILL & Son, as denoted on the top or back of the blade. This also dates the bayonet between 1849 and 1855. This particular bayonet may have been used on a rifled musket as it has the the sighting notch cut into the rim. This bayonet has the early style blade form with the fullers extending through the point and a sharpened false edge along the back of the blade to the tip. There is a stamping to the ricasso of “P over 4”.
There is no scabbard (Reference BCB I22 and pages 324/325)