http://oldguns.net/sn_php/mildateslookup.php The gun was made in 1903
what is the manufacture dateof springfield serial# 1226813
made about 1905
1884
made 1915
1933
April 2005
With the serial number that you provided,your Springfield model M-1 Garand rifle was produced in the year 1942.
it was produced in 1931.
Somewhere between 1948 and 1962.
If your Rifle was made by Springfield then the production year was 1910.If your rifle was made by Rock Island then the production year was 1920.
made by Colt for US Navy. not unusual to see a springfield slide on a Colt frame
your springfield model 1903 was made in 1919.