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