The ring sounds good, but I am no expert. The hammer bounces back easily. And yes small crack maybe 1" wide... from the side appears to be about 1/4" deep
Wow!!, thanks guys for all your responses, this is getting interesting. I just read the article. By the way this was my Great Grandfathers, I am in my 60s so it goes back some. Only my grandfather knew the history and he passed in 1975.