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
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.
You have an Ithaca Miner model made in 1907
double trigger and hammers
A Model 37 is a "pump", so a double barrel could not be a Model 37
Sounds like this is a "New Ithaca Double". Depending on condition, I see these selling for $350-$500 on Gunbroker.com.
You have a Flues model, built with pride in 1920.
$317
It was the Auto/ Burglar gun in 20 Gauge.
Numrich Gun Parts Corp. online at ww.gunpartscorp.com
It is a 10 gauge if it has a damascus barrel and it in mint condition can be worth up to 2000 bucks
Double barrel? Single barrel? Model? Need more information in order to be able to answer.