Old Military?sword

OK,swords are not normally my line,however when this one came along at the right price I grabbed it.
The only thing I really know about it is its pretty old,and it looks a lot like a British pattern 1821 but carries absolutely no markings.
A picture speaks a thousand words so I've loaded a few and would appreciate anything at all you could tell me about it or where I might find such information.

Cheers,

Greg.
https://www.milsurps.com/images/impo.../03/0032-2.jpghttp://img.photobucket.com/albums/v2...nder/011-3.jpg
http://img.photobucket.com/albums/v2...nder/005-3.jpg
http://img.photobucket.com/albums/v2...nder/008-2.jpg
http://img.photobucket.com/albums/v2...nder/006-3.jpg
http://img.photobucket.com/albums/v2...nder/012-5.jpg

No markings at all? Hmmmm...... Well, it is military and probably from the 2nd quarter of the 19th Century so maybe someone will be able to help, it's beyond me but I like it. :)