There's a sketch of a 5-er in Hajdamach p. 435 dated 1893, apparently they came in straight and curved
Brilliant, Christine. I knew I had seen another somewhere in the books, but had failed to find it, despite going through Hajdamach. So Webb's version of this was already well-established before being utilised in their 1896 centrepiece/epergne.
It also explains the 1893 date in Mervyn's caption.
I wonder why Webb did not register the design in 1893. Plagiarised from elsewhere, perhaps?
It looks blown and sealed up on the punty ...
Adam — thanks for that, as I had not thought about how it was made, and, in retrospect, your explanation is obvious. It's a powerful technique, isn't it?
I've seen it used at Formia to create a cylinder which then picked up coloured rods, and then these were marvered in and the whole cylinder twisted to produce a threaded effect. What was interesting was the amount of waste, as the desired pattern only retained its integrity in the main part of the cylinder, so the ends had to be reduced and removed with pucellas. Have I got that right?
I also saw the same technique used by an elderly glassmaker elsewhere on Murano after I had shown him an example of Walsh
Vesta Venetian (see
here for an example). He produced the same effect by using a ribbed dip mould, twisting the cylinder to create the threaded effect, and then using the dip mould again.
Note that Gulliver appears to confuse machine threading and this ribbed dip-mould and twist technique in places — my only, and very minor, criticism of this amazing and essential reference work.
Bernard C.
