I have my great-grandfathers M1917. I'm pretty sure it doesn't have the original stock thought since this one has a deer carved into the side. Are original stocks available?
Boyds also makes them new. They are around $130ish and will require a little fitting from what I was told. Type in M-1917/P-14 rifle stocks on your search engine and you will find them. I have a project P-14 wich is the same thing as the 1917 only in .303 Brit. Good luck on your search and let us know how it turns out.