Pretty sure on the list of changes the volley sight was deleted prior to 1916 and the stock on mine has no provision for the front pointer nor the rear volley sight arm, as for the bluing my 1921 Lithgowraised similar responses but the blue is not as deep and shiny as the rifle portrayed in this thread.(see Pics).
My 1921 Lithgow;
This is my sleeper safe queen, as far as it has been ascertained has not been fired by its original owner a WWII vet or my gunsmith friend I got it off Terry (he is now deceased) who owned the weapon for 30+ plus years before I wrested it from him 8 years for $650/Au it came with its serialed to the rifle 1921 07 Lithgow Bayonet & Lithgow 1921 scabbard it has not been fired by myself either and still retains the 1921 barrel. All the fore woods are in the white and have not been sanded.