This is a Indian pattern bess,  the blade would originally have been 17" long.  The blade has been reduced quite well and is not crude.  It has been suggested this was for use as a tool,  however the bend towards the tip of the blade is still very bayonet like.

Blade marked with makers 'WHEELER CHAPMAN' ^[1], Robert Wheeler, Snow Hill, Birmingham, 1804-1830,  William Chapman, Staffordshire, c.1818.  Also marked with various touch marks and 'Crown' over '46'.

India pattern shoulders.

 

(1) British & Commonwealth bayonets by Ian D Skennerton and Robert Richardson,  page 396-398,  

ISBN 0 949749 04 4