I'm no expert at antiques, but a Google search showed that the name on that bell is Nishimura Izumi-no-kami, a famed bell smith of the Edo Period. He reported created bells for shrines, etc. He represents a family of bell smiths.
However, you have to be aware that there are many forgeries that claim to have been made by famed artists and craftsman. If it was cheap, maybe it's not the real thing. The only way you can find out is to take it to the experts.