Impossible to answer at long distance. The Ithaca grade 7 was made in several variations in the 1920s. These are extremely expensive, with values in the thousands or tens of thousands of dollars for a gun in very good condition. It WILL require a hands-on appraisal. Sorry-
With the serial number that you provided,your Ithaca double barrel shotgun with the damascus barrels was produced in the year 1900.
Its an Ithaca Flues model made in 1921
It sounds as if you have a Ithaca Crass model shotgun,that was produced in the year 1903 by your serial number.
1896
Its an Ithaca Flues model made in 1921
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.
it is worth about 400 dollars
Around July of 1925
Need to know model
By your description,it sounds as if you have a Ithaca model Flues double barrel shotgun that with that serial number was produced in the year 1914.
Your serial number indicates that your Ithaca shotgun was made in the year 1920.
A few hundred to a few thousand.