Help.
I have a Fields Patent rifle in (probably) 450#1 coming in for a referb in a few weeks. In an effort to restore the gun I am going to need to fabricate a new front sight.
Honestly, I'm not too sure about what is correct.

Gun appears similar to this one without the stock reinforcement.
https://revivaler.com/holland-holland-fields-patent-falling-block-rifle/

It is a round barrel gun with no rib, and in my searches, I have seen no less than three different possibilities.
The rear sight is a 2 leaf with the first marked 50-150 and the second 200 IIRC.
I did see one on NE but the front sight wasn't clear enough in the pics.

Any help would be appreciated.

Thanks
Tom