Rothhammer, some belated replies to your questions :

M1908. The set back front sight looks original ; please see http://forums.nitroexpress.com/showflat....true#Post289862 for full background details, text only as photos now held hostage by Photobucket.

M1924. My 7x64 does not bear any sign of having previously been a Sequoia 30-06, see the below photos. In fact I might be wrong when calling it M1924 in case this would only apply to Sequoia models, but until now I have called M1924 all models manufactured from 1924 in high velocity non MS-owned commercial calibers.

Louis