Sn goes beyond published references. You will have to call Colt to find out.
The government issued Colt with that serial number was manufactured by Colt in 1942.
A Colt government model .45 with that serial number was made in 1917.
The Colt government 1911 .45 with that serial number was made in 1944 by Remington Rand
@ 1978
when was the savage model 99 serial number 655391 manufactured
A Colt Python serial number 35128e was manufactured about 1964
That Colt .45 government model was made in 1918.
The serial number 4279990 is a partial serial number for this rifle. To determine the date the rifle was manufactured you need to provide a complete serial number that begins with letters.
THAT IS THE MODEL# NOT THE SERIAL#.
It was manufactured in 1944.
what year was my Winchester M1 carbine serial number 1210906 manufactured
Post 1978. You will have to call Colt to narrow it down any more.