Terrific, Marcus! Thanks very much, both for this and your response on the 5 vases.
This is a lovely piece, and it's great to know that it can be identified.
I've checked minutely, but can find no trace of a signature :-(
Some of the pattern is very sharp, whereas other areas have more rounded detail. Could it be a mixture of a moulded pattern touched up by cutting/engraving? Was that a common practice, do you know?
I can't for the life of me work out why there is a ground-out centre to the base. The top rim is ground flat, thus there ought to have been no need to apply a punty rod to finish it in the glory-hole.