What is the info on Bellmore 12 gauge double barrel?

Bellmore is a brand name used by the Crescent Gun Company.

Crescent operated from 1893 to 1930. There doesn't seem to be any source to pinpoint dates of manufacture by serial numbers.

Crescent was a subsidiary of H&D Folsom Sporting Goods, New York. Many of their products were sold through Folsom's retail outlets, but Folsom was also a large wholesale dealer and many Crescent guns were marked with the names or trademarks of other retail chains and even independent hardware stores.

They sold a million utility shotguns that were "branded" by hardware stores and the like. Typical value is $85 to $250.