The Model 37 was the "workhorse" of the company, and was made in many different gauges and for different uses - i.e., a "riot gun", trench gun", deerslayer, turkey gun, etc., etc. Each of those variables impacts the value, just as does the condition of the gun. If you are talking about the "standard" 12 GA Model 37 Featherweight for general use, and it is in good condition, I see prices in the $150 - $250 range on Gunbroker.com. You might want to log on and see what the market is offering. What Ithaca 37? I guess in general you can figure 50 to 2000 bucks...
how much is an Ithaca model 37 shotgun worth in fair condition
need more info
From a recent internet search, a 16 gauge fetches roughly $385.
1951 Model 37
Depends entirely on age and condition - neither of which is indicated in the question, so no way to answer.
1956.....#'s 602,000-652,000 were produced in 1956.
need information on stevens-springfield model 37 410 shotgun
You will need to contact Ithaca. Published sn's do not go that high.
model 37 around $500 in good condition