If the runout etching is "JD", please consider also [a147827] as a possibility.

Past employment:
Worked for CBS/Sony Music at 31-37 Whitfield Street (different studio names):
[l=CBS Studios, London] 1984-1988
[l=Whitfield Street Recording Studios]
[l=The Hit Factory, London] 1999-2001
[l=Sony Music Studios, London] 2001-2004
[l=Alchemy Soho] 2004-2008

Mastering Engineer of the Year 2016 at the Music Producers' Guild Awards, passed away on the 13th of September 2023.