Vic,
I would certainly assume that to have been the case, even before you said so. However, someone needing replacement cylinders, rebuild kits, shoes etc is going to need the Girling numbers to confirm they have the correct pieces. Not many of us is going to run down to the local breakers and source a set of brakes today, especially not on this side of the pond.
Hope you and Mary are well and playing lots of tennis. We changed the final drive in 4DTN before going back to Put-in-Bay this year and won the impromptu demonstration race. Great fun loading a couple of days essentials into an Eleven, driving it to the ferry, crossing over to the island and driving and racing it for a couple of days before ferrying it back to the mainland and back home. A true adventure.
Roger