thanks

so possibly that would fit in with mine also being 20's perhaps?
With regards the decor, on mine the top blobs near the neck are definitely horizontal dashes, wider than the ones down the body, (which do I agree, look like blobs on the photos), so I think mine have been applied in the way I described in my thread. It's just that as the body bit got blown out more they contracted more into looking like 'blobs', whereas at the neck the trail broke but the strands stayed looking like dashes rather than blobs.... I think

I don't think mine were applied vertically. I think it started as a horizontal trail after the body had been blown into a ribbed mould, so the trail only adhered to the ribs. then it was turned fast to allow the bits where the trail didn't adhere in between the ribs, to break and spring back to remain as contact only with the sticky out bit of the ribs. Then mine was blown out further at the body bit. So yes, possibly different to Stews in the final finishing stages but still applied horizontally as threads, his applied as dotted threads maybe (wouldn't that be difficult though) and mine as a complete trail at first.
I'm wracking my memory as I recall AA posted an answer to something that indicated how this was done as well, but I can't find the post at the mo. I'll have another look later.
m