BR Standard pacifics

Not much to explain here as we all know what Standard pacifics are: Clans (6MT), Britannias (7MT) and the solitary Duke (8P). There will be shots of the Brits that were used to conduct the Westinghouse brake tests and we also see a Clan on the Western Region as well as several Britannias on the Southern's metals. I'm always on the qui vive for more material to augment this part of my collection. Please contact me via the Add comment button at the bottom of the image page if you have anything available.