Lovely condition, are you sure its Swiss?
Did the Swiss copy or Import the hilts from the French?
Isn't this a pioneer variation of the French 1831 Artillery Gladius?
It is in amazing condition. This specific variation is not one I'm familiar with.
The only swiss one I can find pictures of is:
Welcome to the forums by the way
Are there any other stamped marks on the hilt under the leather washer?