WW1 S.M.L.E. question?

I have a S.M.L.E. that is a BSA contract, dated 1917. It's in original WW1 configuration, never was modify after WW1 like the majority of the WW1 S.M.L.E.s. were. It has the normal wear and tear that would be expected of a issued service rifle over 90+ years old. Can somebody give me a ball park figure as to what it may be worth.