Why not paint the darned things? I'd rather have
a somewhat un-
authentic finish that looked good than a cruddy yellow half-and-half
case. If done right, I doubt that anyone could tell at a distance of
more than 6 inches.
It should be noted that painting the yellowed case with a mild paint
is actually the most proper thing to do, in the mind of a professional
conservator. Even more proper, and as done with some aircraft at the
Gerber facility, is to apply a wax coating to the original finish, and
then paint over the wax. This allows the paint to be removed
completely and safely when it comes time to refinish the outer layer.
--
Will