Bill Switchgear modernised the design of their Talisman range, then sold out to MEM who sold out to Eaton , the original Bill is totally different.
Just a point of interest which has nothing to do with the thread whatsoever.
The boss of the old Bill Switchgear works, Ron Bill , used to drive around in a 1930s Bentley 4.5 litre supercharged open topped tourer.