Your Remington 1903-A3 was made by Remington in 1942.
The original Remington was made in 1903 October 1943.
Your Remington model of 1917 rifle was made in November of 1918,with the serial number that you have provided.
With the serial number that you have provided,your Remington model of 1917 wa made in December of 1918.Your rifle was made at the end of production of these rifles for World War I.The last Remington serial number was 646,000.
You can look on remington's website, but judging by the serial number it should have been made in 1980.
Your Remington model 1903 was made in the year 1941,with the serial number that you have provided.
With the serial number that you provided,your Remington Rand made 1911-A1 was made in the year 1945.
I checked www.oldguns.net and they show the manufacture date of Remington 1903A3 serial no. 3851292 as 1942.
Your remington model 700 which has a letter A prefix to the serial number,indicates that it was made in 1980.
your Remington model 1894 shotgun was made in 1899.
1918
Remington.com