Hi Bernard,
Again, thank you for your reply. I should perhaps explain the sudden apparent interest in UK manufacturers by a Czech-centric researcher. I am searching for any patterns appearing in UK manufacturers' catalogues, previously known to have been made in Europe, which went into UK production after the 21st of September 1939.
If the Jobling Ballerina appeared in 1934, I can discount that as most likely being a plagiarised item, but there may be others of which I am not aware. The cut-off year would be 1942, as an Act of Parliament limited production of domestic glass until the end of the war, but other items may have started to appear after VE-Day.
Thanks again,
Regards,
Marcus