Trace them for WHAT? Stolen weapons? Take them to your local law enforcement agency and ask them to run them through the stolen gun file. Most will accommodate your request.
To trace them for historical purposes? Contact the manufacturer.
Serial numbers on firearms in US were made mandatory by the Gun Control Act of 1968.
9952
No. Serial numbers were not required until 1968 and some of Winchesters firearms had them and some didn't.
Inventory tracking for firearms. BTW, ammunition does not have a serial number.
YES
Firearms don't have registration numbers, they have serial numbers. No way to know who was the first to put a number on a firearm. Military firearms have had serial numbers for many years, to aid in the accounting for large numbers of identical guns. Serial numbers were not required by law in the US until the 1934 National Firearms Act reqired them on machine guns and handguns. The 1968 Gun Control Act required them on newly made rifles and shotguns.
In the United States, serial numbers became required with the passage of the Gun Control Act of 1968.
Prior to 1968 that was up to the manufacturer.They somtimes serial numbered there firearms,and sometime not.After the passage of the gun control act of 1968 all manufactures where mandated to put serial numbers on all firearms produced.
Go to the seller where you purchased the gun.
Firearms built prior to 1969 weren't required to have a serial number, and many didn't. Nixon signed the law requiring all firearms to have serial numbers in 1969.
Please follow the link below for searching serial numbers of Colt firearms.
They do not publish it for general public consumption.