How old is it an what condition is it in?
50-100 USD
Probably.
Crescent Firearms Co or Crescent-Davis Arms Corp, for Belknap Hardware.
1901 till1930
Depending on condition, perhaps as much as $400-$500. sales@countrygunsmith.net
Crescent Firearms, sometime between 1888 & 1929. Crescent Firearms Co. was started in 1888 by George W. Cilley. These were made for and sold by a variety of hardware companies, mail order stores, retailers and distributors. Nearly 100 names are known or thought to have been used on shotguns produced by Crescent. In 1929 N. R. Davis Firearms Co. merged with Crescent to become Davis-Crescent Arms Co.
$100-$250, depending on condition.
Firearms marked Hartford were manufactured by Crescent Firearms for the Simmons Hardware Company of St Louis c. 1890-1930.
50-200 USD
70-100 years, 50-200 USD
it is worth 200,000pounds
Some parts interchange, but most do not.