Decca used the WE vertical mastering after they bought World Broadcasting transcription service.
World used Western Electric vertical cut disc for all their broadcast transcriptions because of its broader frequency response at the time over lateral discs.
The vertical cut discs also were less prone to pick up surface scratches.
I have many of the World transcriptions and they are a joy to listen to
--- On Wed, 3/9/11, George Brock-Nannestad <[log in to unmask]> wrote:
> From: George Brock-Nannestad <[log in to unmask]>
> Subject: Re: [ARSCLIST] Turnover and rolloff curves for correct playback of 78 rpm records!
> To: [log in to unmask]
> Date: Wednesday, March 9, 2011, 10:32 AM
> From: Patent Tactics, George
> Hi Mike,
> your last statement
> > Decca was using the Western Electric Wide Range
> Vertical Recording
> > system during the 1943-48 era.
> points to something I have suspected, however I have no
> source to confirm it.
> Do you have somewhere I could look?
> Best wishes,
> Mike Biel [log in to unmask]