I agree with Christine, these are nice pieces and I'd imagine uncommon - I've seen shed loads of T/Webb in a variety of colors/colour combinations, but never any Coronation pieces, and assume they must be scarce ............ I know you've asked this question about 'red' before - can only assume we ignored you due to lack of knowledge

Colours I'm aware of that are known to accompany clear glass (spread across a variety of designs such as 'Cameo Fleur' and Flair etc.) are.......... greens, black, amethyst/purple, yellow/amber, uranium, lime (possibly experimental), blue - but have to say Ross that I have never seen clear and red, and unable to find this combination in the books.
I notice that in the two Christie's catalogues for the Parkington Collection sale in the late 1990s, the 'Cameo Fleur' pieces that I would probably have assumed to be a sort of red, are in fact catalogued as 'pink'............ and Michael Parkington was very keen on T/Webb. Maybe the absence of a T/Webb red in his collection is a form of confirmation that the factory didn't in fact produce the colour. Nigel Benson is probably the person most likely to know more on this subject - outside of these pink 'Cameo Fleur' pieces I not sure that I've seen even this pink combined with clear, so even that seems scarce.
Anyway, sorry we've failed you again, at least for the time being

I understand that T/Webb did make a real black, which is apparently difficult to produce - so much of what appears to be black is really a very dark amethyst - assume your pieces are black.
P.S. coming back to your Coronation pieces, and bearing in mind the fact that the brothers were both crowned in the same year - am I just being picky to query which of them your pieces are celebrating - or was it both
