Forearm iron and watertable are the easiest places to obtain this info
1938-39
It sounds to me that you have a Ithaca Flues model double barrel shotgun.With the serial number that you provided,your shotgun was made by Ithaca in 1917.
According with Ithaca's web page range 371453501 to 371536500 is from 1975.
The gauge is stamped on the water table by the serial number. It is a Flues model made in 1924.
I would say that you have a Ithaca model flues double barrel shotgun that was made in the year 1923,with the serial number that you provided.
The serial number that you provided indicates that you have a Ithaca Flues model double barrel shotgun that was made in the year 1925.I would have your shotgun appraised by someone who specializes in these shotguns because there are to many variables that would indicate a accurate price for your shotgun.
It your shotgun a Model 37-S or 37-T ?
1985 371871501 - 371882000
The value is 150 to 200 dollars and the age is 85 to 105 years.
If the shotgun is a hammerless double, it is a Baker Model produced in 1899 (per Dixie Gun Works, Ithaca Serialization Guide) That serial should be a 1926 production NID. sales@countrygunsmith.net
Made in 1949
Made in 1968