Hi
I have a lot of both Britains premier and Charles biggs premier model company figures ,my understanding is charles biggs had problems with
marketing and distribution so having worked for britains for many years
britains ran with his figures and then I think bought the range from him.
I could be of base here but remeber reading something about it a few
years back.
Neither range is available anymore as britains no longer produces them
and Charles Biggs premier model company is long since gone.
The odd shop still some in stock or E bay.
If you buy them try and get the sets when they where released in the
Black boxes as in my experience these are superior.
When britains dropped the premier label some of the quality was pretty
patchy at best [ie us dodge ambulance,mineweffer etc]
cheers