TromboneChat

Since the recent demise of British trombonist Chris Barber, I have been listening to him and watching him and his bands on Youtube and I am intrigued to know if anyone knows what trombones he played on. I have seen what I think is an Earl Williams model and also a Bb/F which could be an Olds/Reynolds or a Getzen or, less likely, a Boosey and Hawkes/Besson.
Can anyone shed any light on this, please?

Cheers

Stewbones