Date:         Fri, 30 Jan 2004 07:46:07 -0500
Reply-To:     Association for Recorded Sound Discussion List
              <[log in to unmask]>
Sender:       Association for Recorded Sound Discussion List
              <[log in to unmask]>
From:         Art Shifrin <[log in to unmask]>
Subject:      stability of shellac disks
Comments: To: Association for Recorded Sound Discussion List <[log in to unmask]>
Content-Type: text/plain; charset="iso-8859-1"

"I have shellac records over a century old which exhibit no deterioration
other than wear!
Steven C. Barr"

How do you know that the disks have not in some way changed or deteriorated?

Yes, they're playable but even glass changes shape over time.

Shiffy