my comments m were meant to read as.......... "I wish someone would publish a book, with as comprehesive a coverage as possible, showing all of the known T/Webb colours and shapes" ....... I'd be the first in the queue to buy a copy - and of course the same goes for Stuart.
As can be seen in Gulliver and elsewhere, there appears to have been a keen-ness in the second half of the C19 for patents and Registrations, although it seems to have waned in the C20 - perhaps other events occupied peoples minds. As far as I know, T/Webb didn't seem to register their C20 designs/shapes, so outside of a few items in CH, for example, we don't have an authoratitive pictorial guide.
But then perhaps that would make like too easy

Some of the iconic Richardson designs - I'm thinking of those Roman and Greek characters on vases etc., appear in the Nat. Archive pix, but there may have been other gems that they produced which don't occur there.
Regret that Richardson's output in both centuries is not something I'm remotely knowledgable about, and I see them only occasionally when I'm ploughing through the Archive pix - usually when I'm looking for other things.
My earlier comments about having a GMB archive of T/Webb pix doesn't have much appeal perhaps - I suspect that there aren't too many folk who take an interest in that factory.