The manufacture date is when the rifle was made.
Post the whole serial number on here.
send me the serial number and the manufactures name, i.e. springfield, winchester, international harvester, etc.....................
Try oldguns.net
September 1942 to February 1944.
Between Nonember and December 1943.
Between February and November 1944.
your M1 gaeand was made in 1943
need the actual serial number to determine the manufacture date of the rifle.
Between May 1943 and February 1944.
If you provide the serial number in your question then I can give you the date of manufacture.
By it's serial number.Go to proofhouse.com to find the date of manufacture.