The bottom of the barrel, left of center, just in front of the stock.
Your Remington model of 1917 rifle was made in November of 1918,with the serial number that you have provided.
Impossible to id the model from just the serial number.
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.
it is 56 Remington rifle model
106351
it is below the feildmaster logo
With the serial number that you have supplied,your Remington model 1903 rifle was made in the year 1941.
1912
1919
RW is Remington Works, not part of the serial no. 1912.
You will have to contact Remington.
It is not possible to know what year that the model 552 Remington with serial number 1860769 was made without knowing more about the rifle. The 2013 model of rifle will cost a person around $600 to $800.