Just musing on a (pointless?) point of interest ...
Since I happen to have a couple of examples of the "Curved Star" celery vases (in clear, rather than coloured / iridised), I re-checked the prunts for any mould marks.
Sure enough, the four prunts that coincide with the four-part mould edges do show evidence of the moulding line but it is not easy to see this without a magnifier and also getting the light just right. Another point that "confirms" the integral pressed prunts on these items is that all eight prunts are in perfect alignment around the body, both vertically and horizontally.
So ... given that these vases are made in a 4-part mould, I wonder if the design could have ben altered slightly such that none of the prunts would have shown mould lines and given us collectors an opportunity to wonder whether these were later-applied.
Hmm. So much for the strange thoughts that pass through my brain in idle moments