A very battered 3rd pattern FS knife made by William Rodgers (it is stamped on the cross guard but I can’t get a good picture in focus) with a ‘1’ cast on the hilt. The blade has been shortened and re sharpened. On the cross guard there are four unusual marks, although given the condition it is anyone’s guess as to how they got there.
I have shown it with my other knives

Click to enlarge the picture