congratulations Keith, great finds. Townsend's cartoon style art is very appealing, and the Beefeater, as you will know probably better than me, is one of a set (either four or five others, depending on whether or not you include the 'Scottish Piper', apparently). Do you have any of the others? I've not seen any so far, but I became aware of his art when I bought some ceramic tiles showing illustrations of elephant/frog/seal/cockerel - reminds me of the early work of the book illustrator Brian Wildsmith - Townsend, sadly, is no longer with us.
The carriage trays also come in a set of six I believe, although the only one I have ever found was the blue 'Chariot' - although I no longer collect these - sets of things give me a headache - I always seem to end up short of something, and then get irritated because I don't have the complete set. But like the almost mythical 'Balloon Trays' series, the artwork is detailed and attractive. If you would like the blue 'Chariot' coach tray (gratis), let me know, and it will be on it's way to the West Mids.