A cute little machine threaded posy ...
Christine — is it really machine threaded? If it is I would expect to be able to mark a "thread", trace it horizontally right round the vase, and find that I was just one "thread" up or down from where I had started. Unless the vase is badly distorted, it looks to me as if you are likely to be six or eight "threads" away from your starting point, in which case the vase wasn't machine threaded, but six- or eight- ribbed in a dip mould and tightly twisted to produce this effect. Subsequently it was 24?-ribbed in another dip mould to give the vertical pillared effect. ... and subsequently this particular example was probably given its final shape by being blown into and spun in a water lubricated open-and-shut shape mould. Walsh Vesta Venetian was made exactly this way, as was also the more recent Empoli lookalike range that had Eric, me, and many others so confused some years back.
Does this help with attribution? Probably not, as I believe the technique was well known. It still is, as, when I showed an example of the Empoli version to an elderly demonstrator on Murano, he was delighted to show me how it was made. I think he was pleased to have an excuse to get away from the routine agreed with the loud and annoying touts that nearly stopped me going inside. The twisting process after the first dip mould is complex and interesting, as the blower has to isolate the bubble of air in the glass from the blowing iron to stop it all collapsing when it is twisted. On another occasion in Murano I saw a similar process at Formia being used to twist applied canes. Anyway, Walsh is a possible attribution.
I hope that helps,
Bernard C.
