This is where a picture of your bell would be useful. Old bells sometimes get separated from their original yokes and the owner replaces it with another yoke that didn't necessarily come from the original company. This is probably not the case with yours but one never knows.
If you want to know the value of your restored bell for insurance purposes, you can find brand new farm bells for sale at PrindleStation.com. This company owns the original molds used by the C.S. Bell company. They offer three sizes in a price range of $300 to $450. You may also want to look on that popular online auction website to see what #3 C.S. Bell & Co. are selling for.
Regardless, no dollar amount can be given for the sentimental value of your bell.
Member of the American Bell Association since 1965