Just purchased an old bell. It is 18 1/2 dia. at the mouth, big end. it has “C” cast into the rim. The yoke/ has the following cast into it “FREDERICK TOWN OHIO” on one side and “C & D” on the other. It is cast iron and quite rusty. It has a clapper. It also has a crack in the rim a couple of inches long. Can somebody tell me about how old this bell is and who made it? Thanks in advance.