Thanks Tim for your continued help and interest.
I think it could be this one to which you refer?:
https://collections.vam.ac.uk/item/O4967/plate-thomas-hawkes/This is such a lengthy thread with so much research yet no nearer establishing what exactly these 'topaz' finger bowls (reported in the contemporary of the time report in The Mirror, which gave the list of items supplied for the banquet) looked like.
Nor from whence they originated. Absolutely no evidence at all that they were made at Davenport.
I'm beginning to wonder if they really existed (newspaper report, word of mouth?? and printed verbatim??)... or ... long shot .... could they have been these Thomas Hawkes bowls perhaps and wrongly described in The Mirror report?
Thomas Hawkes of Dudley Flint Glassworks closed in 1843 during the depression - so it's most likely that bowl was made before 1843 and likely it could have been made for the Coronation banquet I think... if... it was made at Hawkes. Again it seems from the V&A description that this is not verified.
Source:
http://www.historywebsite.co.uk/articles/Dudley/glassw.htmAnd if that is the case then who made these bowls (one each in the V&A and in The Corning):
here - stated by V&A as made at Davenport -
https://www.vam.ac.uk/blog/museum-life/seeing-more-glow-in-the-dark-glass