What I think I know:

1896 rear sight.

1896 stock; no cartouche on the wrist; looks like an old arsenal overhaul with a re-stamped proof.

1896 bolt, I'm pretty sure, when compared to my 1898.

Bore doesn't seem badly pitted, but it swallowed my gauge to 4+; rifling looks pretty worn.

Missing stacking swivel.

Haven't found any marking on the sling.

I have to say, I think I'm finding myself an odd collector's niche - I have a soft spot in my heart for these old been there, done that arsenal rebuilds that are "original from their service" but by no means actually original, pristine examples as far as the purists are concerned.  Plenty of better, collector-grade examples are out there I'm sure, but...I'm looking for the ones like these that I hear whispering to me, "bring me on home, you know you want to."