A.J. I don't believe L.C. Smith made an 0 grade hammer gun. At this time it was F Grade with other grades made upon request. You could get the F Grade in three styles of barrels.
I do believe that hammer with the bulls-eye pattern is a replacement.
There were 3 different styles of hammers since 1886 and three different styles of locks. The one used on the Syracuse line lasted into the Fulton line until at least 1898 and the newest style "C" style or Type 11 lasted till the end of production of hammer guns in the 1930's.
