restoring ivory

[Paul Kupelian]

Hi all,
I understand nesxt month's journal is going to have some articles on
Ivory.  I have a Steinway "O" that I am rebuilding that has slight
discoloration (yellowing) on many but not all of the keys.

Are there any methods out there for removing the yellowish stains and
brightening up the keytops.

Thanks for your input,
Paul,
kupelian@oswego.edu