Percussion rifle-musket. The stock is possibly made of walnut. It is fitted with brass mounts: butt plate, trigger guard, fore-end cap and three ramrod pipes. An iron ramrod is fitted. A Lovell's spring catch to secure the bayonet projects from the fore-end. Iron sling loops are attached to the trigger guard and over upper ramrod pipe. The lock is a sidelock percussion. The barrel is of circular external section which is rifled. Fitted with foresight and leaf rear sight graduated to a 1,000 yards. The calibre is 0.758in. Inscribed on the barrel is a crown over 'VR', a crown over two crossed pennants, 'E' over '3' and a crown and arrow. Inscribed on the butt is 'MUSKET RIFLED 1842', '2 MA' over '1571' (Museum of Artillery). Inscribed on the lockplate is a crown over 'VR', '1853' over 'ENFIELD', and a crown and arrow. The musket is fitted with a bayonet with a triangular steel tapered blade in a black leather scabbard. Inscribed on the bayonet is the word 'SALTER'. The altered pattern 1842 rifled musket was produced for issue to the Royal Marines - it conforms to the Pattern 42 musket except for the rifling of three or four grooves and the calibre of 0.748in. instead of 0.753in. The pattern 1842 bayonet differs from the standard bayonet in the shape of the collar. The catch on the muskets was replaced by Lovell's spring catch. The spring retained the bayonet by gripping the bulbous protrusion on the collar. The spring had to be pushed to the left and the bayonet pulled up at the same time to release it. This bayonet was superseded in 1853 by the Enfield bayonet with locking ring.