....but is this ivory?

[David]

Resin materials can match the color of antique ivory (or any color for that matter) quite easily. Marius is correct that these photos reveal nothing definitive. I do find much of the blackness on the hilt suspect as it looks applied in some areas, not simply the natural accumulation of dirt. Have you tried to remove the hilt yet? A good view up the pesi hole might be more revealing.