Without knowing for sure what implement brand it came off of makes is almost impossible unless there is a maker's mark/stamp/casting code somewhere on that cast seat. It could be a plain jane replacement seat as well. Nice though. Be some pretty up on my wall
Confusion breeds Discussion which breeds Knowledge which breeds Confidence which breeds Friendship
I'd say if you have a Clagwell seat you have a very rare piece of American history. If too many people were to find out, they would be clamoring all over your place for a look at it. You could find it missing if the wrong person were to know of it. I would sit on it for a while and not let too many know you have it.
It is common sense to take a method and try it. If it fails, admit it frankly and try another. But above all, try something. - Franklin D. Roosevelt -