I diverge a bit from the "restore it" sentiments.
IF I were fortunate enough to have inherited such a revolver from either of my grandfathers, it would remain as he left it, assuming it was functional. If not functional, the farthest I'd go would be to make it functional.
Just my opinion & viewpoint, but the value of such a gun would lie more in who its original owner was, and what he wanted that gun to be. His preferences, in other words, that reflected his character, personality and needs, not mine, and regardless of whatever the rarity or "market value" might be if restored.
I do have one grandfather's Model 94 Winchester that I treasure greatly, with much of the bluing worn. No way in Hell I'd ever consider a re-finish or a restore on that gun.

Granted it's not rare, but the same principle applies. It stays as Grandpa used it & left it.
To me, some things should just be left alone.
Denis