Belonged to Officers in the Cornish Militia. Two brothers served, so these would have belonged to either one. The one is still in nice condition, while the other is suffering from rust. Cool that they still exist, though and could be identified as to owner.
This is a really cool sword style, and was made between 1796-1821. The second (rusty) one is slightly shorter and slightly more curved, so could have been for an Infantry officer.