This is a Light "Horse" Artillery Saber, Model of 1840. This sword is also based upon a French pattern, possibly the M1829.
The hilt is of brass; black leather grip is wrapped with twisted brass "cord" (wire).
These also were carried by North and South during the Civil War and there are variations as a result.
There are quite a lot of French Artillery Swords and other similar patterns available, so inspect these very closely for alterations and attempts to make them "Union" or "Confederate". The French were very good about profusely marking their weapons. Most of the French swords are marked with - the arsenal manufactured, the month, and year. The main French arsenals (or armories) were located at Chatellerault and St. Etienne. Look for grinding marks in an attempt to remove these.

West Point Cadet Name Searches

I have various information on West Point Cadets - graduates and non-graduates - from 1802 to 2002. If there is a name on your sword - and that name is registered as a West Point Cadet - I can very likely supply basic information on that individual. I charge $10 to search, non-refundable. If a record is found, I will forward that information on to you via e-mail; if no record is found, I will e-mail you to that effect. Follow this link to request a West Point Cadet Search.