Ivory removal problems

[Christopher D. Purdy]

List,

I have removed old ivory tops a thousand times and have never had a
problem.  Today I started as usual with steam (iron and wet cloth) and
nothing.  They are brittle and tight.  I have done this so many times and
they just pop off.  Has anyone else had this problem and what did you do to
solve it?  This is an old upright, standard ivory with white cloth
underneath.

chris