Amberina glass

In reply to Mary Harris-Serrao's inquiry about removing marks
(possibly ink) from amberina glass, I would suggest swabbing with a
50/50 mixture of ethanol and water.  Examination under a binocular
microscope should be informative, to determine whether the marks are
on the surface, or scratched into the glass.  If the marks are some
kind of paint, other solvents, such as acetone, naphtha, or xylene
might work.  The surface of amberina glass is quite solid and
stable, and will not be affected by the solvents.

Stephen Koob
Conservator
The Corning Museum of Glass
One Corning Glass Center
Corning, NY 14830
607-974-8228
Fax. 607-974-8470

                                  ***
                  Conservation DistList Instance 13:9
                  Distributed: Thursday, July 22, 1999
                        Message Id: cdl-13-9-002
                                  ***