Fingers, thank you for the reply. I can always count on you!
You are correct, the symbols I was describing are proof marks. There are no marks under the barrel. There is a serial number on the loading lever as well as the frame, barrel, trigger guard and backstrap. On the flat below the left of the barrel it says " cal 31.
There are proof marks on the barrel, cylinder and frame. It is a pretty neat looking gun as it does not have all the "black powder" warnings as I am sure they were not required then.
There is not any other markings of any kind on the gun.
Terry