Jeez Don, I never realized you were that old! How can you say what they looked like 2000 years ago?
aa On Friday, January 30, 2004, at 10:00 AM, Don Cox wrote:
On 30/01/04, Art Shifrin wrote:"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.
I saw an exhibition of Roman glass a few years ago. Those bottles etc didn't show any signs of having changed shape over 2000 years.
Regards -- Don Cox doncox@xxxxxxxxxxxxxx