New guy in Wa. first M1

[Salps]

Frank,
I don't have very good camera with me right now. Stock has no marks, discolored area were cannons should be. No marks in sling well anywhere, crudely carved, marks show oiler was there once. Rear sight has In B on right side and S on left side. Barrel band has raised O on top, side screw and no sling attachment. Any ideas about stock? Looks period but I'm new to these.
Thanks Scott

Edit
I have taken it down a little bit, need to write down stamps on parts.