First you have to determine what kind of "Springfield" you have. It could be a US Military arm from the Springfield Armory dating to sometime before the Civil War or a new sporting arm from Springfield, Inc., but most likely it is a shotgun made by J. Stevens Arms or the Stevens Division of Savage Arms.
Contact springfield arms and ask them. They should be able to look it up and tell you.
Find a book that has sn data on your particular firearm.
The Springfield 187j was made by Savage and is the same as the 87. They were produced before manufacturers were required to put a sn on every firearm made.
firearm manufacturing dates are bascially contained in the serial number, and sometimes the model. so, the serial number and model are important to learn the age of a weapon.
you can find out the age of the firearm by including the serial number in a question here.
The Springfield 67 was made by Savage Arms from the late 1960's through the 1980's. If your gun has no serial number it was made prior to 1968. We have parts for this firearm, and can do any type of repair if needed. email@example.com According to Gun Trader's Guide, the Springfield name was discontinued in 1948.
If you are talking about a major maker of firearms?Then there are 2 ways to find the age of your firearm.First you may go to the manufacturer of your firearm and look at their customer service site and they may help you age your firearm,or second you may get the age of your firearm here by including the make,and serial number of your gun,any special features if applicable.We should be able to help you.
You might try Numrich Gun Parts Corp.If they have parts,then they may have a schematic for the firearm in question.
Get a book on the manufacturer and hope that sn data has been published.
Be of legal age and not be legally disqualified from purchasing a firearm.