ok, it's re-appeared here on a V&A site
https://www.vam.ac.uk/articles/a-z-of-glassand the caption reads
'
Finger bowl, Davenport & Co., 1837, England. Museum no. C.110-1992. © Victoria and Albert Museum, London'
It's the display picture for the U in their alphabetical list of glass and the descriptor reads as follows:
'U is for uranium glass
The fluorescent yellow-green colour of uranium glass is achieved by adding uranium oxide to the glass mixture or ‘batch’. It was developed by the Bohemian glassmaker Josef Riedel during the 1830s, who named it after his wife, Annagrün [Anna Green]. As this glass contains small amounts of uranium, it's slightly radioactive.'
No mention of James Powell.
But has a makers name attached as Davenport & Co.
Under Descriptive Line, the V&A says:
'Descriptive line
Finger-bowl, England, Staffordshire (Longport), made by Davenport, 1837
Bibliographic References (Citation, Note/Abstract, NAL no)
Lockett & Godden, Davenport, p. 287-8'
In Apsley Pellatt's book the
Curiosities of Glass Making 1849 there is really very scant information on Uranium glass. He mentions it on page 73 and talks about the new fashion for scent bottles and the beautiful semi-opalescent, yellowish green colour for these; produced chiefly by the expensive oxide of uranium, mixed with a slight portion of copper and appearing yellow or light green.
Then he goes on to say the chameleon-like effect of it is '
also produced by uranium alone, used as the colouring oxide for gold topaz: it has been much in demand for hock glasses and decanters, and many ornamental articles of glass;...' (hock- my bold, German white wine)
So, if the Topaz bowl was produced in 1837 for Queen Victoria's attendance at the City of London banquet that must have been quite an achievement. Especially given the glass tax laws, although I suppose they wouldn't have mattered if it was for the queen. But it would have meant making up a uranium glass pot specially to produce this glass wouldn't it?
And 12 years later in 1849 Pellatt mentions it was much in demand for hock glasses and decanters.
I wonder where that bowl was produced? And what date for that matter. She married Prince Albert in February 1840. He was German. I presume presents and articles would have come from far and world-wide to celebrate that marriage. That date might fit better with the colour being much in demand for hock glasses etc. However whether it was produced in England at that date is another question as the journalists of the time made much of the fact that even by 1851 at the Great Exhibition, the English glass colours still couldn't compete with Bohemian glass. And the colour of that bowl is pretty amazing.