Still searching for where these pieces were made

And have just bought a very unusual piece of silvered glass so am on the trail again.
I'm sure I've put this link to the 1848 Art Union Journal article on here before as it talks about Drayton's Process of silvering glass, however I can't find it so am adding it once more.
Just as a reminder to myself - I've re-read the article and there is specific reference there to a large quantity of glass being manufactured in Germany for Drayton, for him to use for the silvering process.
This might refer to mirror glass (flat glass) but it is not specific in the article and the way it's written implies it might actually be blown glass for Lamp bases, chandelier parts etc. (see left hand column of attached photographed at the bottom of the article)
I have just been reading a report from earlier than 1848 on how the mirror glass was blown and silvered in Germany and Bohemia and also blown then cut and flattened and polished to use as mirrored glass. So they were clearly one of 'the' markets for making glass linked to the silvering process in some format, even if it
might only have been for flat mirrors. It might also be why the tone of the article in the Frankfurter Zeitung about the Great Exhibition silvered glass from Varnish should have been something Germany would excel at.
From the reports of how the mirrored glass was made I wonder if they might also have been making large silvered globes but using a process that was not healthy for workforce i.e. obviously not Drayton's process, even before 1848. Again this would explain the tone of the Frankfurter Zeitung article, that an idea for silvered glass vases/articles had come from an English source but should have been an idea the German glassmakers could have come up with.
:
See page 327 (photograph attached)
https://books.google.co.uk/books?id=47XlAAAAMAAJ&pg=PA326&dq=silvered+glass+globe+bohemia&hl=en&sa=X&ved=2ahUKEwi1mLaR7ozsAhXxuXEKHRfOD3UQ6AEwB3oECAcQAg#v=onepage&q=silvered%20glass%20globe%20bohemia&f=false