See related links I put a pointer to e-gunparts.com for the model 16, the have many schematics there as well as the parts page online.
A darn good site. http://www.urban-armory.com/diagrams/rem514.htm
it is 56 Remington rifle model
Website for gunpartscorp
No such model number in the Remington line
Contact Remington
No such model number
1909
After 1920 Remington stamped a date code on the left side of the barrel in front of the receiver. The diagram and date code table is on the Remington Society of America.
Remington does make a combo shotgun rifle, the Model SPR94.
THIS IS A CROSMAN. It is a Crosman model 140 or 1400
I suggest that you go to the Crosman homepage ( they own Benjamin) and click on "Download a manual" there you will find the owners manual and parts diagram for your rifle. See related link.
Your Remington model of 1917 rifle was made in November of 1918,with the serial number that you have provided.