Again, for those without the Carr/Stern/Brewer books:
The earlier 1917 grips have the Indian facing forward on the R grip and rearward on the L grip. The later 1917 grips have the Indian facing forward on both grips. The change in grips does not parallel the change from first to second version (ie, 1921) -- second version m1917s have the earlier grips. Neither version is rare. The earlier version is somewhat less common, but seems to be no more valuable.
There are also other m1917 grip variations, including presence or lack of metal escutcheon in the grips for the screws, different metals for the escutcheon (brass or steel), and at least one .32 m1917 (second version) was made with no screw hole at all (in either grips or frame), just the circle on the grips where the hole should be drilled.
Bill
Brian, I notice that yours has the left grip with the Indian in the logo pointing to the rear of the gun, on others the Indian is pointing to the front; a friend of mine just bought a nice one with that version grip at the OGCA show. I told him I would try to find out the story on the grips, I am not sure which is supposed to be the more scarce version (if either is). Hopefully someone that knows can offer some information.
The duller finish is correct.
Gene