Sorry, it has been a while since posting. Forgot how to do it!
Found this today. It is a ball button with what looks like a Lined Block I. Was wondering if it could be a military or is it just a civilian with a lined design?
I does not go all the way around. But I agree that it looks a little too long and wide for a Lined Block I. I does look like it has the top and bottom on the capital I. But that just may he the patina on it fooling my eyes.