Check the date code stamped on the barrel. Remington Society of America, Manufactured Date link has the details.
Your Remington model 1903 was made in the year 1941,with the serial number that you have provided.
Your remington model 700 which has a letter A prefix to the serial number,indicates that it was made in 1980.
With the serial number that you provided,your Remington Rand made 1911-A1 was made in the year 1945.
1918
1920
1987
1926
Made 1909 to 1936
1909
1910
Impossilbe to answer without a serial number.
The C prefix to your serial number indicates that your remington model 700 was made in either 1982,or 2008.