your Ithaca model 37 is made in 1966 look on WWW.SURPLUSRIFLEFORUM.COM look for in the "search engine" on that web site type in ITHACA 37 DOM there you'll find the Serial Number chart
1949
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.
1946
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.
1948
nothing
There's a list of serial numbers by year at http://ithacagunrepair.com/page5/page23/
what is the value of 12 gauge skb double barrel ithaca 1900 model
This ia an Ithaca Gun Co. "Crass" model double and was made in 1896. REFERENCE: the Reference Center pages at www.ithacagunrepair.com - 02-16-07 SPR.
Your Model 37 was mfg. in 1975.
100-400 USD
Remove stock from shotgun