Probably after WWII, maybe 50's or 60's.
Universals are a civilian version of the M1 carbine, made after WW 2. No serial number data is available for the civilian carbines- sorry.
what year was my Winchester M1 carbine serial number 1210906 manufactured
Between December 1943 and May 1944.
It was made by Standard Products between March 1943 and September 1943.
If you mean the serial number is 1, Winchester never made one with serial number 1.
It was a manufacturing code.
$500
It should if it fits on other kinds of M1 Carbines.
All military M1 Carbines were made between 1941 and 1945.
.30 Carbine
About Jan 1944.
July 1944