Electrically recorded Diamond Disc Question

[khannah]

This should be an easy question for the group. What is the first number for electrically recorded diamond discs? I have heard that the first number was 52150, but I have also read that the entire 52000 series was electrically recorded.

Which, if either, is correct?

Many thanks!

[condensite]

I believe the popular series began at number 52089.
The classical series begins at 82351

The few I have almost all have some flaws, darn it!

Bob

[maroongem]

Also numbers 80885-80907 were electrically recorded.

Bill