Based on the small top of the bell as a percentage of the diameter of the mouth, and based on the rings around the bell near the rim, this is a very early bell. I'd say it was made prior to the Civil War. I don't know where you can buy one. This firm was not a large producer of bells, but I do hear of one every few years. -- Neil
I collect U.S. church and fire tower bells and research the foundries which made them.