401438T
You would need to include the model number or name of your Ithaca firearm,along with the serial number to get the correct answer.
Call S&W and they will tell you when it left the factory.
The Ithaca saddle gun was made from 1973-1978.It was made by Erma werke,in West germany for Ithaca.
your 1911 was made by Ithaca in 1943
Your serial number indicates that your Ithaca shotgun was made in the year 1920.
1976
1976 is the year
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
Rossi is owned by Taurus. Contact their Customer Service dept through their website.
Call Ithaca at 1 877 648 4222 and they will tell you.
1963
1962