it's a crass,built in the early to mid 1890's $350.00 to 650.00 depending on condition it's in. condition is everythig
1938-39
1985 371871501 - 371882000
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.
Made in 1949
Made in 1968
$317
If this is an old side by side it would be a Baker model made in 1886. Serial numbers of Ithaca shotguns for that year were 2448 - 4101.
You have a Lewis or NIG model, built in 1903.
According with Ithaca's web page range 371453501 to 371536500 is from 1975.
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.
You have an Ithaca NID model made in 1926, Not knowing condition or grade 300 -3500.
Forearm iron and watertable are the easiest places to obtain this info