Glass audio discs

I am processing and cataloging several glass-based audio discs of
interviews from the 1930's and 1940's. The records have recording
material only on one side--the non-recorded side is glass. The
records are large--about 14 inches in diameter and are very
fragile--two are already broken.

Any thoughts or experience in working with these records? I am
unable to play them so cataloging will be a challenge but I am most
concerned that they receive the processing and preservation they
need to avoid further breakage, at least until we can find a way to
copy them onto more current media.

Linda Kent
Cataloging Librarian
New Hampshire State Library
Concord, NH


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                  Conservation DistList Instance 22:35
                 Distributed: Monday, December 8, 2008
                       Message Id: cdl-22-35-026
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