I have an older Ivorite handled Randall that is starting to show some discoloration. I do not believe this is a storage issue. Has anyone else seen this? I think it is simply yellowing, with age. Would you- attempt to clean it (peroxide, or vinegar and baking soda) or let it mellow?

Thoughts?

I would leave it as is, it's a beautiful material. Perhaps in the future it will become as desirable for collectors as the Westinghouse Micarta which also changed color. Does it change color evenly on all sides?

Indeed...It is, most likely Westinghouse.
Stay Sharp,
Capt. Chris
PS: Photos would be nice...