An example of the Land Pattern (Brown Bess) bayonet used by the British Army during the American Revolution and Napoleonic War
 
No makers marks visable.
Ordnance marked but the viewers mark is not clear.
Blade is marked with a number 2 across the widest part of the blade.
Blade is stained overall with some bright areas and there is some pitting at the widest part of the blade. The socket mortise  has a nick showing heavy use,
Dimensions are as follows;
O/L = 55.3 cm, B/L= 43.6cm, Socket= 10.2cm, MRD= 2.5cm, SM =5cm